Remove PostTask in StreamTextureProxyImpl

No longer need this PostTask hack since enabling ubercomp in
android webview. This essentially reverts r259875

BUG=344087

Review URL: https://codereview.chromium.org/344863005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@278858 0039d316-1c4b-4281-b951-d872f2087c98

content/renderer/media/android/stream_texture_factory_synchronous_impl.cc

@@ -39,7 +39,6 @@ class StreamTextureProxyImpl
   virtual void Release() OVERRIDE;
 
  private:
-  void BindOnCompositorThread(int stream_id);
   void OnFrameAvailable();
 
   scoped_refptr<base::MessageLoopProxy> loop_;
@@ -60,8 +59,6 @@ class StreamTextureProxyImpl
 StreamTextureProxyImpl::StreamTextureProxyImpl(
     StreamTextureFactorySynchronousImpl::ContextProvider* provider)
     : context_provider_(provider), has_updated_(false) {
-  DCHECK(RenderThreadImpl::current());
-  loop_ = RenderThreadImpl::current()->compositor_message_loop_proxy();
   std::fill(current_matrix_, current_matrix_ + 16, 0);
 }
 
@@ -69,7 +66,7 @@ StreamTextureProxyImpl::~StreamTextureProxyImpl() {}
 
 void StreamTextureProxyImpl::Release() {
   SetClient(NULL);
-  if (!loop_->BelongsToCurrentThread())
+  if (loop_.get() && !loop_->BelongsToCurrentThread())
     loop_->DeleteSoon(FROM_HERE, this);
   else
     delete this;
@@ -81,19 +78,7 @@ void StreamTextureProxyImpl::SetClient(cc::VideoFrameProvider::Client* client) {
 }
 
 void StreamTextureProxyImpl::BindToCurrentThread(int stream_id) {
-  if (loop_->BelongsToCurrentThread()) {
-    BindOnCompositorThread(stream_id);
-    return;
-  }
-
-  // Weakptr is only used on compositor thread loop, so this is safe.
-  loop_->PostTask(FROM_HERE,
-                  base::Bind(&StreamTextureProxyImpl::BindOnCompositorThread,
-                             AsWeakPtr(),
-                             stream_id));
-}
-
-void StreamTextureProxyImpl::BindOnCompositorThread(int stream_id) {
+  loop_ = base::MessageLoopProxy::current();
   surface_texture_ = context_provider_->GetSurfaceTexture(stream_id);
   if (!surface_texture_) {
     LOG(ERROR) << "Failed to get SurfaceTexture for stream.";