Remove heapcheck support.

build/common.gypi

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # IMPORTANT:
 # Please don't directly include this file if you are building via gyp_chromium,
 # since gyp_chromium is automatically forcing its inclusion.
 {
   # Variables expected to be overriden on the GYP command line (-D) or by
   # ~/.gyp/include.gypi.
@@ skipping 1095 matching lines @@
     'linux_dump_symbols%': 0,
     # And if we want to strip the binary after dumping symbols.
     'linux_strip_binary%': 0,
     # Strip the test binaries needed for Linux reliability tests.
     'linux_strip_reliability_tests%': 0,
 
     # Enable TCMalloc.
     'linux_use_tcmalloc%': 1,
     'android_use_tcmalloc%': 0,
 
-    # Disable TCMalloc's heapchecker.
-    'linux_use_heapchecker%': 0,
-
-    # Disable shadow stack keeping used by heapcheck to unwind the stacks
-    # better.
-    'linux_keep_shadow_stacks%': 0,
-
     # Set to 1 to link against libgnome-keyring instead of using dlopen().
     'linux_link_gnome_keyring%': 0,
     # Set to 1 to link against gsettings APIs instead of using dlopen().
     'linux_link_gsettings%': 0,
 
     # Default arch variant for MIPS.
     'mips_arch_variant%': 'mips32r2',
 
     # Enable use of OpenMAX DL FFT routines.
     'use_openmax_dl_fft%': '<(use_openmax_dl_fft)',
@@ skipping 2415 matching lines @@
                   ['_toolset=="target"', {
                     'ldflags': [
                       # Workaround for linker OOM.
                       '-Wl,--no-keep-memory',
                     ],
                   }],
                 ],
               }],
             ],
           }],
-          ['linux_use_heapchecker==1', {
-            'variables': {'linux_use_tcmalloc%': 1},
-            'defines': [
-                'USE_HEAPCHECKER',
-                'MEMORY_TOOL_REPLACES_ALLOCATOR',
-            ],
-            'conditions': [
-              ['component=="shared_library"', {
-                # See crbug.com/112389
-                # TODO(glider): replace with --dynamic-list or something
-                'ldflags': ['-rdynamic'],
-              }],
-            ],
-          }],
           ['linux_use_tcmalloc==0 and android_use_tcmalloc==0', {
             'defines': ['NO_TCMALLOC'],
           }],
-          ['linux_keep_shadow_stacks==1', {
-            'defines': ['KEEP_SHADOW_STACKS'],
-            'cflags': [
-              '-finstrument-functions',
-              # Allow mmx intrinsics to inline, so that the compiler can expand
-              # the intrinsics.
-              '-finstrument-functions-exclude-file-list=mmintrin.h',
-            ],
-          }],
           ['linux_use_gold_flags==1', {
             'target_conditions': [
               ['_toolset=="target"', {
                 'ldflags': [
                   # Experimentation found that using four linking threads
                   # saved ~20% of link time.
                   # https://groups.google.com/a/chromium.org/group/chromium-dev/browse_thread/thread/281527606915bb36
                   # Only apply this to the target linker, since the host
                   # linker might not be gold, but isn't used much anyway.
                   '-Wl,--threads',
@@ skipping 1216 matching lines @@
     # settings in target dicts.  SYMROOT is a special case, because many other
     # Xcode variables depend on it, including variables such as
     # PROJECT_DERIVED_FILE_DIR.  When a source group corresponding to something
     # like PROJECT_DERIVED_FILE_DIR is added to a project, in order for the
     # files to appear (when present) in the UI as actual files and not red
     # red "missing file" proxies, the correct path to PROJECT_DERIVED_FILE_DIR,
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }