This patch is to enable the vtune profiling tool support in chrome.

content/content.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,  # Use higher warning level.
+    'chromium_enable_vtunejit_for_v8%': 0,  # enable the vtune support for V8 engine.
     'directxsdk_exists': '<!(python <(DEPTH)/build/dir_exists.py ../third_party/directxsdk)',
     'conditions': [
       ['inside_chromium_build==0', {
         'webkit_src_dir': '../../../..',
       },{
         'webkit_src_dir': '../third_party/WebKit',
       }],
     ],
   },
   'target_defaults': {
@@ skipping 146 matching lines @@
               'target_name': 'content_renderer',
               'type': 'static_library',
               'variables': { 'enable_wexit_time_destructors': 1, },
               'includes': [
                 'content_renderer.gypi',
               ],
               'dependencies': [
                 'content_common',
                 'content_resources.gyp:content_resources',
               ],
+              'conditions': [
+                ['chromium_enable_vtunejit_for_v8==1', {
+                  'dependencies': [
+                    '../v8/src/third_party/vtune/v8vtune.gyp:v8_vtune',
+                  ],
+                }],
+              ],
             },
             {
               'target_name': 'content_utility',
               'type': 'static_library',
               'variables': { 'enable_wexit_time_destructors': 1, },
               'includes': [
                 'content_utility.gypi',
               ],
               'dependencies': [
                 'content_common',
@@ skipping 22 matching lines @@
           'variables': { 'enable_wexit_time_destructors': 1, },
           'dependencies': [
            'content_resources.gyp:content_resources',
           ],
           'conditions': [
             ['OS=="mac"', {
               'dependencies': [
                 '<(DEPTH)/third_party/mach_override/mach_override.gyp:mach_override',
               ],
             }],
+            ['chromium_enable_vtunejit_for_v8==1', {
+              'dependencies': [
+                '../v8/src/third_party/vtune/v8vtune.gyp:v8_vtune',
+              ],
+            }],
           ],
           'includes': [
             'content_app.gypi',
             'content_browser.gypi',
             'content_common.gypi',
             'content_gpu.gypi',
             'content_plugin.gypi',
             'content_ppapi_plugin.gypi',
             'content_renderer.gypi',
             'content_utility.gypi',
@@ skipping 165 matching lines @@
             'include_dirs': [
               '<(SHARED_INTERMEDIATE_DIR)/content',
             ],
           },
           'includes': [ 'content_jni.gypi' ],
         },
       ],
     }],  # OS == "android"
   ],
 }