[chrome.displaySource] Implement software based H.264 video encoder.

extensions/extensions.gyp

 # 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.
 
 {
   'includes': [
     'extensions.gypi',
   ],
   'variables': {
     'chromium_code': 1,
@@ skipping 20 matching lines @@
       # depend upon this target for generating the js bindings files. Any
       # generated cpp files must be listed explicitly in extensions_common
       'type': 'none',
       'includes': [
         '../mojo/mojom_bindings_generator.gypi',
       ],
       'sources': [
         '<@(extensions_common_mojo_sources)',
       ],
       'conditions': [
-        ['enable_wifi_display==1', {
+        ['proprietary_codecs==1 and enable_wifi_display==1', {
           'sources': [
             '<@(extensions_common_mojo_sources_wifi_display)',
           ],
         }],
       ],
     },
     {
       # GN version: //extensions/common
       'target_name': 'extensions_common',
       'type': 'static_library',
@@ skipping 127 matching lines @@
         }],
         ['OS == "linux" and chromeos == 0', {
           'dependencies': [
             '../build/linux/system.gyp:dbus',
             '../dbus/dbus.gyp:dbus',
           ],
           'sources': [
             '<@(extensions_browser_sources_linux_nonchromeos)',
           ],
         }],
-        ['enable_wifi_display == 1', {
+        ['proprietary_codecs==1 and enable_wifi_display == 1', {
           'sources': [
             '<@(extensions_browser_sources_wifi_display)',
             '<(SHARED_INTERMEDIATE_DIR)/extensions/common/mojo/wifi_display_session_service.mojom.cc',
             '<(SHARED_INTERMEDIATE_DIR)/extensions/common/mojo/wifi_display_session_service.mojom.h',
           ],
         }],
       ],
       # Disable c4267 warnings until we fix size_t to int truncations.
       'msvs_disabled_warnings': [ 4267, ],
     },
@@ skipping 12 matching lines @@
       ],
       'include_dirs': [
         '..',
       ],
       'sources': [
         '<@(extensions_renderer_sources)',
       ],
       # Disable c4267 warnings until we fix size_t to int truncations.
       'msvs_disabled_warnings': [ 4267, ],
       'conditions': [
-        ['enable_wifi_display==1', {
+        ['proprietary_codecs==1 and enable_wifi_display==1', {
           'dependencies': [
+            '../third_party/openh264/openh264.gyp:openh264_encoder',
             '../third_party/wds/wds.gyp:libwds',
           ],
           'sources': [
             '<@(extensions_renderer_sources_wifi_display)',
           ],
         }],
       ],
     },
     {
       # GN version: //extensions/utility
@@ skipping 85 matching lines @@
               '<(SHARED_INTERMEDIATE_DIR)/blink/devtools_resources.pak',
             ],
             'pak_output': '<(PRODUCT_DIR)/extensions_shell_and_test.pak',
           },
           'includes': [ '../build/repack_action.gypi' ],
         },
       ],
     },
   ]
 }