Implement Chrome Extension TabCapture API.

chrome/browser/extensions/extension_service.h

Index: chrome/browser/extensions/extension_service.h
diff --git a/chrome/browser/extensions/extension_service.h b/chrome/browser/extensions/extension_service.h
index 6e5ee2100911e07fec48d67c86231eb59f0711a3..c8d73b76bcfbb45b4f5485f2fa078d14121ad47e 100644
--- a/chrome/browser/extensions/extension_service.h
+++ b/chrome/browser/extensions/extension_service.h
@@ -81,6 +81,7 @@ class PendingExtensionManager;
 class PreferenceEventRouter;
 class PushMessagingEventRouter;
 class SettingsFrontend;
+class TabCaptureEventRouter;
 class WebNavigationEventRouter;
 class WindowEventRouter;
 }
@@ -514,6 +515,10 @@ class ExtensionService
     return window_event_router_.get();
   }
 
+  extensions::TabCaptureEventRouter* tab_capture_event_router() {
+    return tab_capture_event_router_.get();
+  }
+
 #if defined(OS_CHROMEOS)
   chromeos::ExtensionBluetoothEventRouter* bluetooth_event_router() {
     return bluetooth_event_router_.get();
@@ -855,6 +860,9 @@ class ExtensionService
   scoped_ptr<extensions::ExtensionManagedModeEventRouter>
       managed_mode_event_router_;
 
+  scoped_ptr<extensions::TabCaptureEventRouter>
+      tab_capture_event_router_;
+
 #if defined(OS_CHROMEOS)
   scoped_ptr<chromeos::ExtensionBluetoothEventRouter> bluetooth_event_router_;
   scoped_ptr<chromeos::ExtensionInputMethodEventRouter>