Use webrtc::DesktopCapturer for screen capturer implementation.

media/media.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': {
     'chromium_code': 1,
     # Override to dynamically link the cras (ChromeOS audio) library.
     'use_cras%': 0,
     # Option e.g. for Linux distributions to link pulseaudio directly
@@ skipping 32 matching lines @@
   'targets': [
     {
       'target_name': 'media',
       'type': '<(component)',
       'dependencies': [
         '../base/base.gyp:base',
         '../build/temp_gyp/googleurl.gyp:googleurl',
         '../crypto/crypto.gyp:crypto',
         '../skia/skia.gyp:skia',
         '../third_party/opus/opus.gyp:opus',
+        '../third_party/webrtc/modules/modules.gyp:desktop_capture',
         '../ui/ui.gyp:ui',
       ],
       'defines': [
         'MEDIA_IMPLEMENTATION',
       ],
       'include_dirs': [
         '..',
       ],
       'sources': [
         'audio/android/audio_manager_android.cc',
@@ skipping 298 matching lines @@
         'video/capture/linux/video_capture_device_linux.cc',
         'video/capture/linux/video_capture_device_linux.h',
         'video/capture/mac/video_capture_device_mac.h',
         'video/capture/mac/video_capture_device_mac.mm',
         'video/capture/mac/video_capture_device_qtkit_mac.h',
         'video/capture/mac/video_capture_device_qtkit_mac.mm',
         'video/capture/screen/differ.cc',
         'video/capture/screen/differ.h',
         'video/capture/screen/differ_block.cc',
         'video/capture/screen/differ_block.h',
-        'video/capture/screen/x11/x_server_pixel_buffer.cc',
-        'video/capture/screen/x11/x_server_pixel_buffer.h',
+        'video/capture/screen/mac/desktop_configuration.h',
         'video/capture/screen/mac/desktop_configuration.mm',
-        'video/capture/screen/mac/desktop_configuration.h',
         'video/capture/screen/mac/scoped_pixel_buffer_object.cc',
         'video/capture/screen/mac/scoped_pixel_buffer_object.h',
-        'video/capture/screen/mouse_cursor_shape.cc',
         'video/capture/screen/mouse_cursor_shape.h',
-        'video/capture/screen/screen_capture_data.cc',
-        'video/capture/screen/screen_capture_data.h',
         'video/capture/screen/screen_capture_device.cc',
         'video/capture/screen/screen_capture_device.h',
-        'video/capture/screen/screen_capture_frame.cc',
-        'video/capture/screen/screen_capture_frame.h',
         'video/capture/screen/screen_capture_frame_queue.cc',
         'video/capture/screen/screen_capture_frame_queue.h',
         'video/capture/screen/screen_capturer.h',
         'video/capture/screen/screen_capturer_fake.cc',
         'video/capture/screen/screen_capturer_fake.h',
         'video/capture/screen/screen_capturer_helper.cc',
         'video/capture/screen/screen_capturer_helper.h',
-        'video/capture/screen/screen_capturer_x11.cc',
         'video/capture/screen/screen_capturer_mac.mm',
         'video/capture/screen/screen_capturer_null.cc',
         'video/capture/screen/screen_capturer_win.cc',
-        'video/capture/screen/shared_buffer.cc',
-        'video/capture/screen/shared_buffer.h',
+        'video/capture/screen/screen_capturer_x11.cc',
+        'video/capture/screen/shared_desktop_frame.cc',
+        'video/capture/screen/shared_desktop_frame.h',
         'video/capture/screen/win/desktop.cc',
         'video/capture/screen/win/desktop.h',
         'video/capture/screen/win/scoped_thread_desktop.cc',
         'video/capture/screen/win/scoped_thread_desktop.h',
+        'video/capture/screen/x11/x_server_pixel_buffer.cc',
+        'video/capture/screen/x11/x_server_pixel_buffer.h',
         'video/capture/video_capture.h',
         'video/capture/video_capture_device.h',
         'video/capture/video_capture_device_dummy.cc',
         'video/capture/video_capture_device_dummy.h',
         'video/capture/video_capture_proxy.cc',
         'video/capture/video_capture_proxy.h',
         'video/capture/video_capture_types.h',
         'video/capture/win/capability_list_win.cc',
         'video/capture/win/capability_list_win.h',
         'video/capture/win/filter_base_win.cc',
@@ skipping 432 matching lines @@
             'mp4/offset_byte_queue.cc',
             'mp4/offset_byte_queue.h',
             'mp4/track_run_iterator.cc',
             'mp4/track_run_iterator.h',
           ],
         }],
         [ 'screen_capture_supported==0', {
           'sources/': [
             ['exclude', '^video/capture/screen/'],
           ],
+          'dependencies!': [

[Ami GONE FROM CHROMIUM, 2013/05/14 00:23:38]

Do you need a copy of this at l.1093?

[Sergey Ulanov, 2013/05/14 00:31:19]

Done. (it's just an optimization for faster compilation - that target should
compile for all platforms).

+            '../third_party/webrtc/modules/modules.gyp:desktop_capture',
+          ],
         }],
         [ 'screen_capture_supported==1 and (target_arch=="ia32" or target_arch=="x64")', {
           'dependencies': [
             'differ_block_sse2',
           ],
         }],
         ['toolkit_uses_gtk==1', {
           'dependencies': [
             '../build/linux/system.gyp:gtk',
           ],
@@ skipping 26 matching lines @@
       'dependencies': [
         'media',
         'media_test_support',
         '../base/base.gyp:base',
         '../base/base.gyp:base_i18n',
         '../base/base.gyp:test_support_base',
         '../skia/skia.gyp:skia',
         '../testing/gmock.gyp:gmock',
         '../testing/gtest.gyp:gtest',
         '../ui/ui.gyp:ui',
+        '../third_party/webrtc/modules/modules.gyp:desktop_capture',
       ],
       'sources': [
         'audio/async_socket_io_handler_unittest.cc',
         'audio/audio_input_controller_unittest.cc',
         'audio/audio_input_device_unittest.cc',
         'audio/audio_input_unittest.cc',
         'audio/audio_input_volume_unittest.cc',
         'audio/audio_low_latency_input_output_unittest.cc',
         'audio/audio_output_controller_unittest.cc',
         'audio/audio_output_device_unittest.cc',
@@ skipping 70 matching lines @@
         'filters/h264_to_annex_b_bitstream_converter_unittest.cc',
         'filters/pipeline_integration_test.cc',
         'filters/pipeline_integration_test_base.cc',
         'filters/skcanvas_video_renderer_unittest.cc',
         'filters/source_buffer_stream_unittest.cc',
         'filters/video_decoder_selector_unittest.cc',
         'filters/video_frame_stream_unittest.cc',
         'filters/video_renderer_base_unittest.cc',
         'video/capture/screen/differ_block_unittest.cc',
         'video/capture/screen/differ_unittest.cc',
-        'video/capture/screen/shared_buffer_unittest.cc',
         'video/capture/screen/screen_capture_device_unittest.cc',
         'video/capture/screen/screen_capturer_helper_unittest.cc',
         'video/capture/screen/screen_capturer_mac_unittest.cc',
         'video/capture/screen/screen_capturer_unittest.cc',
         'video/capture/video_capture_device_unittest.cc',
         'webm/cluster_builder.cc',
         'webm/cluster_builder.h',
         'webm/webm_cluster_parser_unittest.cc',
         'webm/webm_content_encodings_client_unittest.cc',
         'webm/webm_parser_unittest.cc',
@@ skipping 115 matching lines @@
     },
     {
       'target_name': 'media_test_support',
       'type': 'static_library',
       'dependencies': [
         'media',
         '../base/base.gyp:base',
         '../skia/skia.gyp:skia',
         '../testing/gmock.gyp:gmock',
         '../testing/gtest.gyp:gtest',
+        '../third_party/webrtc/modules/modules.gyp:desktop_capture',
       ],
       'sources': [
         'audio/mock_audio_manager.cc',
         'audio/mock_audio_manager.h',
         'audio/test_audio_input_controller_factory.cc',
         'audio/test_audio_input_controller_factory.h',
         'base/fake_audio_render_callback.cc',
         'base/fake_audio_render_callback.h',
         'base/gmock_callback_support.h',
         'base/mock_audio_renderer_sink.cc',
@@ skipping 576 matching lines @@
           ],
           'sources': [
             'base/simd/sinc_resampler_sse.cc',
             'base/simd/vector_math_sse.cc',
           ],
         }, # end of target media_sse
       ],
     }],
   ],
 }