--- a/gfx/angle/src/common/debug.h
+++ b/gfx/angle/src/common/debug.h
@@ -119,17 +119,17 @@ namespace gl
 // A macro that determines whether an object has a given runtime type.
 #if !defined(NDEBUG) && (!defined(_MSC_VER) || defined(_CPPRTTI)) && (!defined(__GNUC__) || __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 3) || defined(__GXX_RTTI))
 #define HAS_DYNAMIC_TYPE(type, obj) (dynamic_cast<type >(obj) != NULL)
 #else
 #define HAS_DYNAMIC_TYPE(type, obj) true
 #endif
 
 // A macro functioning as a compile-time assert to validate constant conditions
-#if defined(_MSC_VER) && _MSC_VER >= 1600
+#if (defined(_MSC_VER) && _MSC_VER >= 1600) || (defined(__GNUC__) && (__GNUC__ > 4 || __GNUC_MINOR__ >= 3))
 #define META_ASSERT_MSG(condition, msg) static_assert(condition, msg)
 #else
 #define META_ASSERT_CONCAT(a, b) a ## b
 #define META_ASSERT_CONCAT2(a, b) META_ASSERT_CONCAT(a, b)
 #define META_ASSERT_MSG(condition, msg) typedef int META_ASSERT_CONCAT2(COMPILE_TIME_ASSERT_, __LINE__)[static_cast<bool>(condition)?1:-1]
 #endif
 #define META_ASSERT(condition) META_ASSERT_MSG(condition, "compile time assertion failed.")
 

--- a/gfx/angle/src/libEGL/Display.cpp
+++ b/gfx/angle/src/libEGL/Display.cpp
@@ -9,16 +9,17 @@
 // [EGL 1.4] section 2.1.2 page 3.
 
 #include "libEGL/Display.h"
 
 #include <algorithm>
 #include <map>
 #include <vector>
 #include <sstream>
+#include <iterator>
 
 #include "common/debug.h"
 #include "common/mathutil.h"
 #include "libGLESv2/main.h"
 #include "libGLESv2/Context.h"
 #include "libGLESv2/renderer/SwapChain.h"
 
 #include "libEGL/main.h"

--- a/gfx/angle/src/libGLESv2.gypi
+++ b/gfx/angle/src/libGLESv2.gypi
@@ -41,16 +41,17 @@
             'common/utilities.cpp',
             'common/utilities.h',
             'common/version.h',
             'libGLESv2/BinaryStream.h',
             'libGLESv2/Buffer.cpp',
             'libGLESv2/Buffer.h',
             'libGLESv2/Caps.cpp',
             'libGLESv2/Caps.h',
+            'libGLESv2/Constants.h',
             'libGLESv2/Context.cpp',
             'libGLESv2/Context.h',
             'libGLESv2/Error.cpp',
             'libGLESv2/Error.h',
             'libGLESv2/Fence.cpp',
             'libGLESv2/Fence.h',
             'libGLESv2/Float16ToFloat32.cpp',
             'libGLESv2/Framebuffer.cpp',
@@ -82,17 +83,16 @@
             'libGLESv2/Uniform.cpp',
             'libGLESv2/Uniform.h',
             'libGLESv2/VertexArray.cpp',
             'libGLESv2/VertexArray.h',
             'libGLESv2/VertexAttribute.cpp',
             'libGLESv2/VertexAttribute.h',
             'libGLESv2/angletypes.cpp',
             'libGLESv2/angletypes.h',
-            'libGLESv2/constants.h',
             'libGLESv2/formatutils.cpp',
             'libGLESv2/formatutils.h',
             'libGLESv2/libGLESv2.cpp',
             'libGLESv2/libGLESv2.def',
             'libGLESv2/libGLESv2.rc',
             'libGLESv2/main.cpp',
             'libGLESv2/main.h',
             'libGLESv2/queryconversions.cpp',

rename from gfx/angle/src/libGLESv2/constants.h
rename to gfx/angle/src/libGLESv2/Constants.h

--- a/gfx/angle/src/libGLESv2/Context.cpp
+++ b/gfx/angle/src/libGLESv2/Context.cpp
@@ -28,16 +28,17 @@
 #include "libGLESv2/VertexArray.h"
 #include "libGLESv2/Sampler.h"
 #include "libGLESv2/validationES.h"
 #include "libGLESv2/TransformFeedback.h"
 
 #include "libEGL/Surface.h"
 
 #include <sstream>
+#include <iterator>
 
 namespace gl
 {
 
 Context::Context(int clientVersion, const gl::Context *shareContext, rx::Renderer *renderer, bool notifyResets, bool robustAccess)
     : mRenderer(renderer)
 {
     ASSERT(robustAccess == false);   // Unimplemented
@@ -336,17 +337,17 @@ void Context::deleteRenderbuffer(GLuint 
 }
 
 void Context::deleteFenceSync(GLsync fenceSync)
 {
     // The spec specifies the underlying Fence object is not deleted until all current
     // wait commands finish. However, since the name becomes invalid, we cannot query the fence,
     // and since our API is currently designed for being called from a single thread, we can delete
     // the fence immediately.
-    mResourceManager->deleteFenceSync(reinterpret_cast<GLuint>(fenceSync));
+    mResourceManager->deleteFenceSync(reinterpret_cast<uintptr_t>(fenceSync));
 }
 
 void Context::deleteVertexArray(GLuint vertexArray)
 {
     auto vertexArrayObject = mVertexArrayMap.find(vertexArray);
 
     if (vertexArrayObject != mVertexArrayMap.end())
     {
@@ -442,17 +443,17 @@ Texture *Context::getTexture(GLuint hand
 
 Renderbuffer *Context::getRenderbuffer(GLuint handle)
 {
     return mResourceManager->getRenderbuffer(handle);
 }
 
 FenceSync *Context::getFenceSync(GLsync handle) const
 {
-    return mResourceManager->getFenceSync(reinterpret_cast<GLuint>(handle));
+    return mResourceManager->getFenceSync(reinterpret_cast<uintptr_t>(handle));
 }
 
 VertexArray *Context::getVertexArray(GLuint handle) const
 {
     auto vertexArray = mVertexArrayMap.find(handle);
 
     if (vertexArray == mVertexArrayMap.end())
     {

--- a/gfx/angle/src/libGLESv2/Framebuffer.h
+++ b/gfx/angle/src/libGLESv2/Framebuffer.h
@@ -7,17 +7,17 @@
 // Framebuffer.h: Defines the gl::Framebuffer class. Implements GL framebuffer
 // objects and related functionality. [OpenGL ES 2.0.24] section 4.4 page 105.
 
 #ifndef LIBGLESV2_FRAMEBUFFER_H_
 #define LIBGLESV2_FRAMEBUFFER_H_
 
 #include "common/angleutils.h"
 #include "common/RefCountObject.h"
-#include "constants.h"
+#include "Constants.h"
 
 namespace rx
 {
 class Renderer;
 }
 
 namespace gl
 {

--- a/gfx/angle/src/libGLESv2/Texture.h
+++ b/gfx/angle/src/libGLESv2/Texture.h
@@ -9,17 +9,17 @@
 // related functionality. [OpenGL ES 2.0.24] section 3.7 page 63.
 
 #ifndef LIBGLESV2_TEXTURE_H_
 #define LIBGLESV2_TEXTURE_H_
 
 #include "common/debug.h"
 #include "common/RefCountObject.h"
 #include "libGLESv2/angletypes.h"
-#include "libGLESv2/constants.h"
+#include "libGLESv2/Constants.h"
 #include "libGLESv2/renderer/TextureImpl.h"
 #include "libGLESv2/Caps.h"
 
 #include "angle_gl.h"
 
 #include <vector>
 
 namespace egl

--- a/gfx/angle/src/libGLESv2/VertexArray.h
+++ b/gfx/angle/src/libGLESv2/VertexArray.h
@@ -9,17 +9,17 @@
 //   together to form a vertex array object. All state related to the definition of data used
 //   by the vertex processor is encapsulated in a vertex array object.
 //
 
 #ifndef LIBGLESV2_VERTEXARRAY_H_
 #define LIBGLESV2_VERTEXARRAY_H_
 
 #include "common/RefCountObject.h"
-#include "libGLESv2/constants.h"
+#include "libGLESv2/Constants.h"
 #include "libGLESv2/VertexAttribute.h"
 
 #include <vector>
 
 namespace rx
 {
 class Renderer;
 class VertexArrayImpl;

--- a/gfx/angle/src/libGLESv2/angletypes.h
+++ b/gfx/angle/src/libGLESv2/angletypes.h
@@ -4,17 +4,17 @@
 // found in the LICENSE file.
 //
 
 // angletypes.h : Defines a variety of structures and enum types that are used throughout libGLESv2
 
 #ifndef LIBGLESV2_ANGLETYPES_H_
 #define LIBGLESV2_ANGLETYPES_H_
 
-#include "libGLESv2/constants.h"
+#include "libGLESv2/Constants.h"
 #include "common/RefCountObject.h"
 
 namespace gl
 {
 class Buffer;
 class ProgramBinary;
 struct VertexAttribute;
 struct VertexAttribCurrentValueData;

--- a/gfx/angle/src/libGLESv2/renderer/copyimage.cpp
+++ b/gfx/angle/src/libGLESv2/renderer/copyimage.cpp
@@ -1,17 +1,17 @@
 //
 // Copyright (c) 2013 The ANGLE Project Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 
 // copyimage.cpp: Defines image copying functions
 
-#include "libGLESv2/renderer/copyImage.h"
+#include "libGLESv2/renderer/copyimage.h"
 
 namespace rx
 {
 
 void CopyBGRA8ToRGBA8(const uint8_t *source, uint8_t *dest)
 {
     uint32_t argb = *reinterpret_cast<const uint32_t*>(source);
     *reinterpret_cast<uint32_t*>(dest) = (argb & 0xFF00FF00) |       // Keep alpha and green

--- a/gfx/angle/src/libGLESv2/renderer/copyimage.inl
+++ b/gfx/angle/src/libGLESv2/renderer/copyimage.inl
@@ -19,14 +19,14 @@ template <typename destType, typename co
 inline void WriteColor(const uint8_t *source, uint8_t *dest)
 {
     destType::writeColor(reinterpret_cast<destType*>(dest), reinterpret_cast<const gl::Color<colorDataType>*>(source));
 }
 
 template <typename sourceType, typename destType, typename colorDataType>
 inline void CopyPixel(const uint8_t *source, uint8_t *dest)
 {
-    colorType temp;
+    colorDataType temp;
     ReadColor<sourceType, colorDataType>(source, &temp);
     WriteColor<destType, colorDataType>(&temp, dest);
 }
 
 }

--- a/gfx/angle/src/libGLESv2/renderer/d3d/DynamicHLSL.h
+++ b/gfx/angle/src/libGLESv2/renderer/d3d/DynamicHLSL.h
@@ -5,17 +5,17 @@
 //
 // DynamicHLSL.h: Interface for link and run-time HLSL generation
 //
 
 #ifndef LIBGLESV2_RENDERER_DYNAMIC_HLSL_H_
 #define LIBGLESV2_RENDERER_DYNAMIC_HLSL_H_
 
 #include "common/angleutils.h"
-#include "libGLESv2/constants.h"
+#include "libGLESv2/Constants.h"
 
 #include "angle_gl.h"
 
 #include <vector>
 #include <map>
 
 namespace rx
 {

--- a/gfx/angle/src/libGLESv2/renderer/d3d/TextureD3D.cpp
+++ b/gfx/angle/src/libGLESv2/renderer/d3d/TextureD3D.cpp
@@ -124,17 +124,17 @@ bool TextureD3D::subImage(GLint xoffset,
                        GLenum format, GLenum type, const gl::PixelUnpackState &unpack, const void *pixels, Image *image)
 {
     const void *pixelData = pixels;
 
     // CPU readback & copy where direct GPU copy is not supported
     if (unpack.pixelBuffer.id() != 0)
     {
         gl::Buffer *pixelBuffer = unpack.pixelBuffer.get();
-        unsigned int offset = reinterpret_cast<unsigned int>(pixels);
+        uintptr_t offset = reinterpret_cast<uintptr_t>(pixels);
         // TODO: setImage/subImage is the only place outside of renderer that asks for a buffers raw data.
         // This functionality should be moved into renderer and the getData method of BufferImpl removed.
         const void *bufferData = pixelBuffer->getImplementation()->getData();
         pixelData = static_cast<const unsigned char *>(bufferData) + offset;
     }
 
     if (pixelData != NULL)
     {
@@ -178,17 +178,17 @@ bool TextureD3D::fastUnpackPixels(const 
     {
         return true;
     }
 
     // In order to perform the fast copy through the shader, we must have the right format, and be able
     // to create a render target.
     ASSERT(mRenderer->supportsFastCopyBufferToTexture(sizedInternalFormat));
 
-    unsigned int offset = reinterpret_cast<unsigned int>(pixels);
+    uintptr_t offset = reinterpret_cast<uintptr_t>(pixels);
 
     return mRenderer->fastCopyBufferToTexture(unpack, offset, destRenderTarget, sizedInternalFormat, type, destArea);
 }
 
 GLint TextureD3D::creationLevels(GLsizei width, GLsizei height, GLsizei depth) const
 {
     if ((gl::isPow2(width) && gl::isPow2(height) && gl::isPow2(depth)) || mRenderer->getRendererExtensions().textureNPOT)
     {

--- a/gfx/angle/src/libGLESv2/renderer/d3d/TextureD3D.h
+++ b/gfx/angle/src/libGLESv2/renderer/d3d/TextureD3D.h
@@ -6,17 +6,17 @@
 
 // TextureD3D.h: Implementations of the Texture interfaces shared betweeen the D3D backends.
 
 #ifndef LIBGLESV2_RENDERER_TEXTURED3D_H_
 #define LIBGLESV2_RENDERER_TEXTURED3D_H_
 
 #include "libGLESv2/renderer/TextureImpl.h"
 #include "libGLESv2/angletypes.h"
-#include "libGLESv2/constants.h"
+#include "libGLESv2/Constants.h"
 
 namespace gl
 {
 class Framebuffer;
 }
 
 namespace rx
 {

--- a/gfx/angle/src/libGLESv2/validationES.cpp
+++ b/gfx/angle/src/libGLESv2/validationES.cpp
@@ -1641,17 +1641,17 @@ bool ValidateDrawElements(Context *conte
         return false;
     }
 
     // Use max index to validate if our vertex buffers are large enough for the pull.
     // TODO: offer fast path, with disabled index validation.
     // TODO: also disable index checking on back-ends that are robust to out-of-range accesses.
     if (elementArrayBuffer)
     {
-        unsigned int offset = reinterpret_cast<unsigned int>(indices);
+        uintptr_t offset = reinterpret_cast<uintptr_t>(indices);
         if (!elementArrayBuffer->getIndexRangeCache()->findRange(type, offset, count, indexRangeOut, NULL))
         {
             const void *dataPointer = elementArrayBuffer->getImplementation()->getData();
             const uint8_t *offsetPointer = static_cast<const uint8_t *>(dataPointer) + offset;
             *indexRangeOut = rx::IndexRangeCache::ComputeRange(type, offsetPointer, count);
         }
     }
     else

--- a/gfx/angle/src/third_party/trace_event/trace_event.h
+++ b/gfx/angle/src/third_party/trace_event/trace_event.h
@@ -582,17 +582,17 @@ const int zeroNumArgs = 0;
 const unsigned long long noEventId = 0;
 
 // TraceID encapsulates an ID that can either be an integer or pointer. Pointers
 // are mangled with the Process ID so that they are unlikely to collide when the
 // same pointer is used on different processes.
 class TraceID {
 public:
     explicit TraceID(const void* id, unsigned char* flags) :
-        m_data(static_cast<unsigned long long>(reinterpret_cast<unsigned long>(id)))
+        m_data(static_cast<unsigned long long>(reinterpret_cast<uintptr_t>(id)))
     {
         *flags |= TRACE_EVENT_FLAG_MANGLE_ID;
     }
     explicit TraceID(unsigned long long id, unsigned char* flags) : m_data(id) { (void)flags; }
     explicit TraceID(unsigned long id, unsigned char* flags) : m_data(id) { (void)flags; }
     explicit TraceID(unsigned int id, unsigned char* flags) : m_data(id) { (void)flags; }
     explicit TraceID(unsigned short id, unsigned char* flags) : m_data(id) { (void)flags; }
     explicit TraceID(unsigned char id, unsigned char* flags) : m_data(id) { (void)flags; }
@@ -783,44 +783,13 @@ private:
     struct Data {
         const unsigned char* categoryEnabled;
         const char* name;
     };
     Data* m_pdata;
     Data m_data;
 };
 
-// TraceEventSamplingStateScope records the current sampling state
-// and sets a new sampling state. When the scope exists, it restores
-// the sampling state having recorded.
-template<size_t BucketNumber>
-class SamplingStateScope {
-public:
-    SamplingStateScope(const char* categoryAndName)
-    {
-        m_previousState = SamplingStateScope<BucketNumber>::current();
-        SamplingStateScope<BucketNumber>::set(categoryAndName);
-    }
-
-    ~SamplingStateScope()
-    {
-        SamplingStateScope<BucketNumber>::set(m_previousState);
-    }
-
-    // FIXME: Make load/store to traceSamplingState[] thread-safe and atomic.
-    static inline const char* current()
-    {
-        return reinterpret_cast<const char*>(*gl::traceSamplingState[BucketNumber]);
-    }
-    static inline void set(const char* categoryAndName)
-    {
-        *gl::traceSamplingState[BucketNumber] = reinterpret_cast<long>(const_cast<char*>(categoryAndName));
-    }
-
-private:
-    const char* m_previousState;
-};
-
 } // namespace TraceEvent
 
 } // namespace gl
 
 #endif