Infrastructure for reading V8's initial snapshot from external files

chrome/chrome_tests.gypi

 # Copyright 2013 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': {
     'chrome_browser_extensions_test_support_sources': [
       # A list of sources which is shared between different browser tests.
       'browser/apps/app_browsertest_util.cc',
       'browser/apps/app_browsertest_util.h',
       'browser/extensions/browsertest_util.cc',
@@ skipping 1862 matching lines @@
       'sources': [
         '<@(chrome_browser_tests_sources)',
         '<@(chrome_browser_extensions_test_support_sources)',
         'test/base/browser_tests_main.cc',
       ],
       'rules': [
         {
           'rule_name': 'js2webui',
           'extension': 'js',
           'msvs_external_rule': 1,
+          'variables': {
+            'conditions': [
+              ['v8_use_external_startup_data==1', {
+                'external_v8': 'y',
+              }, {
+                'external_v8': 'n',
+              }],
+            ],
+          },
           'inputs': [
             '<(gypv8sh)',
             '<(PRODUCT_DIR)/d8<(EXECUTABLE_SUFFIX)',
             '<(mock_js)',
             '<(test_api_js)',
             '<(js2gtest)',
           ],
           'outputs': [
             '<(INTERMEDIATE_DIR)/chrome/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT)-gen.cc',
             '<(PRODUCT_DIR)/test_data/chrome/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).js',
           ],
           'process_outputs_as_sources': 1,
           'action': [
             'python',
             '<@(_inputs)',
+            '--external', '<(external_v8)',
             'webui',
             '<(RULE_INPUT_PATH)',
             'chrome/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).js',
             '<@(_outputs)',
           ],
         },
       ],
       'msvs_settings': {
         'VCLinkerTool': {
           'conditions': [
@@ skipping 535 matching lines @@
         'HAS_OUT_OF_PROC_TEST_RUNNER',
       ],
       'sources': [
         '<@(performance_browser_tests_sources)',
       ],
       'rules': [
         {
           'rule_name': 'js2webui',
           'extension': 'js',
           'msvs_external_rule': 1,
+          'variables': {
+            'conditions': [
+              ['v8_use_external_startup_data==1', {
+                'external_v8': 'y',
+              }, {
+                'external_v8': 'n',
+              }],
+            ],
+          },
           'inputs': [
             '<(gypv8sh)',
             '<(PRODUCT_DIR)/d8<(EXECUTABLE_SUFFIX)',
             '<(mock_js)',
             '<(test_api_js)',
             '<(js2gtest)',
           ],
           'outputs': [
             '<(INTERMEDIATE_DIR)/chrome/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT)-gen.cc',
             '<(PRODUCT_DIR)/test_data/chrome/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).js',
           ],
           'process_outputs_as_sources': 1,
           'action': [
             'python',
             '<@(_inputs)',
             'webui',
+            '--external', '<(external_v8)',
             '<(RULE_INPUT_PATH)',
             'chrome/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).js',
             '<@(_outputs)',
           ],
         },
       ],
       'conditions': [
         ['OS=="win"', {
           'sources': [
             '<(SHARED_INTERMEDIATE_DIR)/chrome_version/other_version.rc',
@@ skipping 690 matching lines @@
             ['enable_webrtc==1', {
               'dependencies': [
                 '../third_party/libjingle/libjingle.gyp:libjingle_webrtc'
               ]
             }],
           ],
         }]
     }],
   ],  # 'conditions'
 }