Implement screen capturer for MediaStream API.

content/content_tests.gypi

Index: content/content_tests.gypi
diff --git a/content/content_tests.gypi b/content/content_tests.gypi
index 4ffc7311bde2227f58cb332ff4a81db2f5c738b2..6b1a7b00da58d9498bafca727f6ff3b3cd37c8cf 100644
--- a/content/content_tests.gypi
+++ b/content/content_tests.gypi
@@ -343,7 +343,7 @@
         'browser/web_contents/web_drag_source_mac_unittest.mm',
         'browser/webui/web_ui_message_handler_unittest.cc',
         'common/android/address_parser_unittest.cc',
-	'common/cc_messages_unittest.cc',
+	    'common/cc_messages_unittest.cc',
         'common/mac/attributed_string_coder_unittest.mm',
         'common/mac/font_descriptor_unittest.mm',
         'common/gpu/gpu_info_unittest.cc',
@@ -525,6 +525,7 @@
         }],
         ['enable_webrtc==1', {
           'sources': [
+            'browser/renderer_host/media/screen_capturer_unittest.cc',
             'browser/renderer_host/p2p/socket_host_test_utils.h',
             'browser/renderer_host/p2p/socket_host_tcp_unittest.cc',
             'browser/renderer_host/p2p/socket_host_tcp_server_unittest.cc',
@@ -537,6 +538,7 @@
             'renderer/media/webrtc_audio_device_unittest.cc',
           ],
           'dependencies': [
+            '../remoting/remoting.gyp:remoting_screen_capturer',
             '../third_party/libjingle/libjingle.gyp:libjingle_peerconnection',
             '../third_party/webrtc/modules/modules.gyp:video_capture_module',
             '../third_party/webrtc/system_wrappers/source/system_wrappers.gyp:system_wrappers',