Introduce Image loader extension.

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 177 matching lines @@
       # Set to 1 to enable fast builds. It disables debug info for fastest
       # compilation.
       'fastbuild%': 0,
 
       # Set to 1 to enable dcheck in release without having to use the flag.
       'dcheck_always_on%': 0,
 
       # Disable file manager component extension by default.
       'file_manager_extension%': 0,
 
+      # Disable image loader component extension by default.
+      'image_loader_extension%': 0,
+
       # Python version.
       'python_ver%': '2.6',
 
       # Set ARM-v7 compilation flags
       'armv7%': 0,
 
       # Set Neon compilation flags (only meaningful if armv7==1).
       'arm_neon%': 1,
 
       # The system root for cross-compiles. Default: none.
@@ skipping 254 matching lines @@
           'use_gnome_keyring%': 0,
         }, {
           'use_gnome_keyring%': 1,
         }],
 
         ['toolkit_uses_gtk==1 or OS=="mac" or OS=="ios"', {
           # GTK+, Mac and iOS want Title Case strings
           'use_titlecase_in_grd_files%': 1,
         }],
 
-        # Enable file manager extension on Chrome OS.
+        # Enable file manager and image loader extensions on Chrome OS.
         ['chromeos==1', {
           'file_manager_extension%': 1,
+          'image_loader_extension%': 1,
         }, {
           'file_manager_extension%': 0,
+          'image_loader_extension%': 0,
         }],
 
         ['OS=="win" or OS=="mac" or (OS=="linux" and chromeos==0)', {
           'enable_one_click_signin%': 1,
         }],
 
         ['OS=="android"', {
           'enable_automation%': 0,
           'enable_extensions%': 0,
           'enable_google_now%': 0,
@@ skipping 185 matching lines @@
     'use_x11%': '<(use_x11)',
     'use_gnome_keyring%': '<(use_gnome_keyring)',
     'linux_fpic%': '<(linux_fpic)',
     'enable_pepper_threading%': '<(enable_pepper_threading)',
     'chromeos%': '<(chromeos)',
     'enable_viewport%': '<(enable_viewport)',
     'enable_hidpi%': '<(enable_hidpi)',
     'enable_touch_ui%': '<(enable_touch_ui)',
     'use_xi2_mt%':'<(use_xi2_mt)',
     'file_manager_extension%': '<(file_manager_extension)',
+    'image_loader_extension%': '<(image_loader_extension)',
     'inside_chromium_build%': '<(inside_chromium_build)',
     'fastbuild%': '<(fastbuild)',
     'dcheck_always_on%': '<(dcheck_always_on)',
     'python_ver%': '<(python_ver)',
     'armv7%': '<(armv7)',
     'arm_neon%': '<(arm_neon)',
     'sysroot%': '<(sysroot)',
     'system_libdir%': '<(system_libdir)',
     'component%': '<(component)',
     'use_titlecase_in_grd_files%': '<(use_titlecase_in_grd_files)',
@@ skipping 681 matching lines @@
       }],
       ['use_ash==1', {
         'grit_defines': ['-D', 'use_ash'],
       }],
       ['use_nss==1', {
         'grit_defines': ['-D', 'use_nss'],
       }],
       ['file_manager_extension==1', {
         'grit_defines': ['-D', 'file_manager_extension'],
       }],
+      ['image_loader_extension==1', {
+        'grit_defines': ['-D', 'image_loader_extension'],
+      }],
       ['remoting==1', {
         'grit_defines': ['-D', 'remoting'],
       }],
       ['use_titlecase_in_grd_files==1', {
         'grit_defines': ['-D', 'use_titlecase'],
       }],
       ['use_third_party_translations==1', {
         'grit_defines': ['-D', 'use_third_party_translations'],
         'locales': [
           'ast', 'bs', 'ca@valencia', 'en-AU', 'eo', 'eu', 'gl', 'hy', 'ia',
@@ skipping 327 matching lines @@
       }],
       ['google_tv==1', {
         'defines': ['GOOGLE_TV=1'],
       }],
       ['use_xi2_mt!=0', {
         'defines': ['USE_XI2_MT=<(use_xi2_mt)'],
       }],
       ['file_manager_extension==1', {
         'defines': ['FILE_MANAGER_EXTENSION=1'],
       }],
+      ['image_loader_extension==1', {
+        'defines': ['IMAGE_LOADER_EXTENSION=1'],
+      }],
       ['profiling==1', {
         'defines': ['ENABLE_PROFILING=1'],
       }],
       ['OS=="linux" and glibcxx_debug==1', {
         'defines': ['_GLIBCXX_DEBUG=1',],
         'cflags_cc+': ['-g'],
       }],
       ['remoting==1', {
         'defines': ['ENABLE_REMOTING=1'],
       }],
@@ skipping 2323 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',
   },
 }