[MediaRouter] The minimal change to make everything build on Android.

chrome/browser/media/router/media_router_mojo_impl.cc

Index: chrome/browser/media/router/media_router_mojo_impl.cc
diff --git a/chrome/browser/media/router/media_router_mojo_impl.cc b/chrome/browser/media/router/media_router_mojo_impl.cc
index 05ab81ff2fe0d5b70b438d22b440b225850a8d3c..65e158beadd752b518f606fa1b522b32a7d016e9 100644
--- a/chrome/browser/media/router/media_router_mojo_impl.cc
+++ b/chrome/browser/media/router/media_router_mojo_impl.cc
@@ -10,7 +10,7 @@
 #include "base/memory/scoped_vector.h"
 #include "base/observer_list.h"
 #include "base/strings/stringprintf.h"
-#include "chrome/browser/media/router/media_router_mojo_impl_factory.h"
+#include "chrome/browser/media/router/media_router_factory.h"
 #include "chrome/browser/media/router/media_router_type_converters.h"
 #include "chrome/browser/media/router/media_routes_observer.h"
 #include "chrome/browser/media/router/media_sinks_observer.h"
@@ -95,8 +95,8 @@ void MediaRouterMojoImpl::BindToRequest(
     const std::string& extension_id,
     content::BrowserContext* context,
     mojo::InterfaceRequest<interfaces::MediaRouter> request) {
-  MediaRouterMojoImpl* impl =
-      MediaRouterMojoImplFactory::GetApiForBrowserContext(context);
+  MediaRouterMojoImpl* impl = static_cast<MediaRouterMojoImpl*>(
+      MediaRouterFactory::GetApiForBrowserContext(context));
   DCHECK(impl);
 
   impl->BindToMojoRequest(request.Pass(), extension_id);