author Tim Huang <tihuang@mozilla.com>
Thu, 31 Aug 2017 11:14:14 +0800
changeset 453921 b2f55468b241f28678dc5e35e19eb3b5781a1c5c
parent 438301 67a8e12324569dd730347187e2ffccae486c758b
child 488287 ff3a0784588f2cb5aaa84e8d6a2a3677a5e52930
permissions -rw-r--r--
Bug 1222285 - Part 2: Making the keyboard events of modifier keys been suppressed when 'privacy.resistFingerprinting' is true. r=arthuredelstein,masayuki This patch makes 'Shift', 'Alt', 'Contorl' and 'AltGraph' been suppressed for content when fingerprinting resistance is enabled. Chrome can still get these events. The reason behind this is that websites can still observe key combinations to tell which keyboard layout is using even we spoof the keyboardEvent.code, keyboardEvent.keyCode and modifier states. For example, the AZERTY France keyboard, the digit keys of it requires the user press the Shift key. So, it is easy to differentiate AZERTY and QWERTY keyboard by observing whether a Shift key generates its own before the digit keys. There are similar issues for 'Alt' and 'AltGraph' as well. MozReview-Commit-ID: 3CwCgvey4lK

# .lldbinit file for debugging Mozilla

# -----------------------------------------------------------------------------
# For documentation on all of the commands and type summaries defined here and
# in the accompanying Python scripts, see third_party/python/lldbutils/README.txt.
# -----------------------------------------------------------------------------

# Import the module that defines complex Gecko debugging commands.  This assumes
# you are either running lldb from the top level source directory, the objdir,
# or the dist/bin directory.  (.lldbinit files in the objdir and dist/bin set
# topsrcdir appropriately.)
script topsrcdir = topsrcdir if locals().has_key("topsrcdir") else os.getcwd(); sys.path.append(os.path.join(topsrcdir, "third_party/python/lldbutils")); import lldbutils; lldbutils.init()

# Mozilla's use of UNIFIED_SOURCES to include multiple source files into a
# single compiled file breaks lldb breakpoint setting. This works around that.
# See http://lldb.llvm.org/troubleshooting.html for more info.
settings set target.inline-breakpoint-strategy always

# Show the dynamic type of an object when using "expr".  This, for example,
# will show a variable declared as "nsIFrame *" that points to an nsBlockFrame
# object as being of type "nsBlockFrame *" rather than "nsIFrame *".
settings set target.prefer-dynamic-value run-target

# Show the string value in atoms.
type summary add nsAtom --summary-string "${var.mString}"

# Show the value of text nodes.
type summary add nsTextNode --summary-string "${var.mText}"

# Dump the current JS stack.
command alias js expr DumpJSStack()