Add target base_unittests_run and tools/isolate/isolate.py.

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 269 matching lines @@
       # specific implementations of CanvasSkia. Affects text drawing in the
       # Chrome UI.
       # TODO(asvitkine): Enable this on all platforms and delete this flag.
       #                  http://crbug.com/105550
       'use_canvas_skia_skia%': 0,
 
       # Set to "tsan", "memcheck", or "drmemory" to configure the build to work
       # with one of those tools.
       'build_for_tool%': '',
 
+      # Whether tests targets should be run, archived or just have the
+      # dependencies verified. All the tests targets have the '_run' suffix,
+      # e.g. base_unittests_run runs the target base_unittests. The test target
+      # always calls tools/isolate/isolate.py. See the script's --help for more
+      # information and the valid --mode values. Meant to be overriden with
+      # GYP_DEFINES.
+      'tests_run%': 'check',
+
       'conditions': [
         # TODO(epoger): Figure out how to set use_skia=1 for Mac outside of
         # the 'conditions' clause.  Initial attempts resulted in chromium and
         # webkit disagreeing on its setting.
         ['OS=="mac"', {
           'use_skia%': '<(use_skia_on_mac)',
           # Mac uses clang by default, so turn on the plugin as well.
           'clang_use_chrome_plugins%': 1,
         }, {
           'use_skia%': 1,
@@ skipping 169 matching lines @@
     'asan%': '<(asan)',
     'asan_blacklist%': '<(asan_blacklist)',
     'order_text_section%': '<(order_text_section)',
     'enable_register_protocol_handler%': '<(enable_register_protocol_handler)',
     'enable_web_intents%': '<(enable_web_intents)',
     'enable_web_intents_tag%': '<(enable_web_intents_tag)',
     'enable_plugin_installation%': '<(enable_plugin_installation)',
     'linux_use_gold_binary%': '<(linux_use_gold_binary)',
     'linux_use_gold_flags%': '<(linux_use_gold_flags)',
     'use_canvas_skia_skia%': '<(use_canvas_skia_skia)',
+    'tests_run%': '<(tests_run)',
+
     # Whether to build for Wayland display server
     'use_wayland%': 0,
 
     # Use system yasm instead of bundled one.
     'use_system_yasm%': 0,
 
     # Default to enabled PIE; this is important for ASLR but we may need to be
     # able to turn it off for various reasons.
     'linux_disable_pie%': 0,
 
@@ skipping 2386 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',
   },
 }