Add video capture on Android.

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 PulseAudio library.
     'use_pulseaudio%': 0,
     # Override to dynamically link the cras (ChromeOS audio) library.
     'use_cras%': 0,
     'conditions': [
       ['OS == "android" or OS == "ios"', {
         # Android and iOS don't use ffmpeg.
         'use_ffmpeg%': 0,
         # Android and iOS don't use libvpx.
         'use_libvpx%': 0,
       }, {  # 'OS != "android" and OS != "ios"'
         'use_ffmpeg%': 1,
         'use_libvpx%': 1,
       }],

[Ami GONE FROM CHROMIUM, 2013/01/30 19:46:23]

I wish you had separated addressing the code review comments and rebasing into
separate rietveld patchsets (in that order) because doing so makes it much
easier to skim over the (usually irrelevant) rebase inter-patchset diffs. 
Please do that in the future.

       # Screen capturer works only on Windows, OSX and Linux.
       ['OS=="win" or OS=="mac" or OS=="linux"', {
         'screen_capture_supported%': 1,
       }, {
         'screen_capture_supported%': 0,
       }],
     ],
   },
   'targets': [
     {
@@ skipping 285 matching lines @@
         'filters/source_buffer_stream.cc',
         'filters/source_buffer_stream.h',
         'filters/video_decoder_selector.cc',
         'filters/video_decoder_selector.h',
         'filters/video_frame_generator.cc',
         'filters/video_frame_generator.h',
         'filters/video_renderer_base.cc',
         'filters/video_renderer_base.h',
         'filters/vpx_video_decoder.cc',
         'filters/vpx_video_decoder.h',
+        'video/capture/android/video_capture_device_android.cc',
+        'video/capture/android/video_capture_device_android.h',
         'video/capture/fake_video_capture_device.cc',
         'video/capture/fake_video_capture_device.h',
         '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',
@@ skipping 171 matching lines @@
         }],
         ['OS == "android"', {
           'sources': [
             'base/media_stub.cc',
           ],
           'link_settings': {
             'libraries': [
               '-lOpenSLES',
             ],
           },
+          'include_dirs': [
+            '<(SHARED_INTERMEDIATE_DIR)/media',
+          ],
+          'dependencies': [
+            'video_capture_android_jni_headers',
+          ],
         }],
         # A simple WebM encoder for animated avatars on ChromeOS.
         ['chromeos==1', {
           'dependencies': [
             '../third_party/libvpx/libvpx.gyp:libvpx',
             '../third_party/libyuv/libyuv.gyp:libyuv',
           ],
           'sources': [
             'webm/chromeos/ebml_writer.cc',
             'webm/chromeos/ebml_writer.h',
@@ skipping 77 matching lines @@
               'defines': [
                 'USE_PULSEAUDIO',
               ],
             }, {  # else: use_pulseaudio == 0
               'sources!': [
                 'audio/pulse/pulse_output.cc',
                 'audio/pulse/pulse_output.h',
               ],
             }],
           ],
-        }],
-        ['os_posix == 1 and OS != "android"', {
-          # Video capture isn't supported in Android yet.
           'sources!': [
             'video/capture/video_capture_device_dummy.cc',
             'video/capture/video_capture_device_dummy.h',
           ],
         }],
         ['OS=="mac"', {
           'link_settings': {
             'libraries': [
               '$(SDKROOT)/System/Library/Frameworks/AudioToolbox.framework',
               '$(SDKROOT)/System/Library/Frameworks/AudioUnit.framework',
@@ skipping 681 matching lines @@
           'sources': [
             'base/android/java/src/org/chromium/media/MediaPlayerBridge.java',
             'base/android/java/src/org/chromium/media/MediaPlayerListener.java',
           ],
           'variables': {
             'jni_gen_dir': 'media',
           },
           'includes': [ '../build/jni_generator.gypi' ],
         },
         {
+          'target_name': 'camera_jni_headers',
+          'type': 'none',
+          'variables': {
+            'jni_gen_dir': 'media',
+            'input_java_class': 'android/hardware/Camera.class',
+            'input_jar_file': '<(android_sdk)/android.jar',
+          },
+          'includes': [ '../build/jar_file_jni_generator.gypi' ],
+        },
+        {
+          'target_name': 'video_capture_android_jni_headers',
+          'type': 'none',
+          'dependencies': [
+            'camera_jni_headers',
+          ],
+          'sources': [
+            'base/android/java/src/org/chromium/media/VideoCapture.java',
+          ],
+          'variables': {
+            'jni_gen_dir': 'media',
+          },
+          'includes': [ '../build/jni_generator.gypi' ],
+        },
+        {
           'target_name': 'player_android',
           'type': 'static_library',
           'sources': [
             'base/android/media_jni_registrar.cc',
             'base/android/media_jni_registrar.h',
             'base/android/media_player_bridge.cc',
             'base/android/media_player_bridge.h',
             'base/android/media_player_listener.cc',
             'base/android/media_player_listener.h',
           ],
@@ skipping 134 matching lines @@
           ],
           'sources': [
             'video/capture/screen/differ_block_sse2.cc',
             'video/capture/screen/differ_block_sse2.h',
           ],
         }, # end of target differ_block_sse2
       ],
     }],
   ],
 }