Adding third_party/openh264 build files for encoding

build/all.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': {
     # A hook that can be overridden in other repositories to add additional
     # compilation targets to 'All'.
     'app_targets%': [],
     # For Android-specific targets.
     'android_app_targets%': [],
   },
+  'includes': [
+    '../third_party/openh264/openh264_args.gypi',
+  ],
   'targets': [
     {
       'target_name': 'All',
       'type': 'none',
       'xcode_create_dependents_test_runner': 1,
       'dependencies': [
         '<@(app_targets)',
         'some.gyp:*',
         '../base/base.gyp:*',
         '../components/components.gyp:*',
@@ skipping 257 matching lines @@
         ['(chromeos==1 or OS=="linux" or OS=="win" or OS=="mac") and chromecast==0', {
           'dependencies': [
             '../extensions/shell/app_shell.gyp:*',
           ],
         }],
         ['envoy==1', {
           'dependencies': [
             '../envoy/envoy.gyp:*',
           ],
         }],
+        ['use_openh264==1', {
+          'dependencies': [
+            '../third_party/openh264/openh264.gyp:*',
+          ],
+        }],
       ],
     }, # target_name: All
     {
       'target_name': 'All_syzygy',
       'type': 'none',
       'conditions': [
         ['OS=="win" and fastbuild==0 and target_arch=="ia32" and '
             '(syzyasan==1 or syzygy_optimize==1)', {
           'dependencies': [
             '../chrome/installer/mini_installer_syzygy.gyp:*',
@@ skipping 1131 matching lines @@
           'dependencies': [
             '../ui/views/examples/examples.gyp:views_examples_with_content_exe',
             '../ui/views/views.gyp:views',
             '../ui/views/views.gyp:views_unittests',
           ],
         },  # target_name: macviews_builder
       ],  # targets
     }],  # os=='mac' and toolkit_views==1
   ],  # conditions
 }