Changed Blimp client to start with white screen before drawing contents

cc/trees/remote_channel_impl.cc

 // Copyright 2016 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.
 
 #include "cc/trees/remote_channel_impl.h"
 
 #include "base/bind_helpers.h"
 #include "base/memory/ptr_util.h"
 #include "base/single_thread_task_runner.h"
 #include "cc/animation/animation_events.h"
@@ skipping 313 matching lines @@
     DebugScopedSetMainThreadBlocked main_thread_blocked(task_runner_provider_);
     ImplThreadTaskRunner()->PostTask(
         FROM_HERE,
         base::Bind(&ProxyImpl::MainFrameWillHappenOnImplForTesting,
                    proxy_impl_weak_ptr_, &completion, &main_frame_will_happen));
     completion.Wait();
   }
   return main_frame_will_happen;
 }
 
-void RemoteChannelImpl::DidCompleteSwapBuffers() {}
+void RemoteChannelImpl::DidCompleteSwapBuffers() {

[Khushal, 2016/04/28 03:32:26]

Could you DCHECK(task_runner_provider_->IsImplThread()) here?

[shaktisahu, 2016/04/28 21:38:16]

Done.

+  MainThreadTaskRunner()->PostTask(
+      FROM_HERE, base::Bind(&RemoteChannelImpl::DidCompleteSwapBuffersOnMain,
+                            impl().remote_channel_weak_ptr));
+}
 
 void RemoteChannelImpl::SetRendererCapabilitiesMainCopy(
     const RendererCapabilities& capabilities) {}
 
 void RemoteChannelImpl::BeginMainFrameNotExpectedSoon() {}
 
 void RemoteChannelImpl::DidCommitAndDrawFrame() {}
 
 void RemoteChannelImpl::SetAnimationEvents(
     std::unique_ptr<AnimationEvents> queue) {}
@@ skipping 46 matching lines @@
 void RemoteChannelImpl::SendMessageProto(
     std::unique_ptr<proto::CompositorMessage> proto) {
   DCHECK(task_runner_provider_->IsImplThread());
 
   MainThreadTaskRunner()->PostTask(
       FROM_HERE,
       base::Bind(&RemoteChannelImpl::SendMessageProtoOnMain,
                  impl().remote_channel_weak_ptr, base::Passed(&proto)));
 }
 
+void RemoteChannelImpl::DidCompleteSwapBuffersOnMain() {
+  DCHECK(task_runner_provider_->IsMainThread());
+  main().layer_tree_host->DidCompleteSwapBuffers();
+}
+
 void RemoteChannelImpl::DidLoseOutputSurfaceOnMain() {
   DCHECK(task_runner_provider_->IsMainThread());
 
   main().layer_tree_host->DidLoseOutputSurface();
 }
 
 void RemoteChannelImpl::RequestNewOutputSurfaceOnMain() {
   DCHECK(task_runner_provider_->IsMainThread());
 
   main().layer_tree_host->RequestNewOutputSurface();
@@ skipping 117 matching lines @@
 
 RemoteChannelImpl::CompositorThreadOnly::CompositorThreadOnly(
     base::WeakPtr<RemoteChannelImpl> remote_channel_weak_ptr)
     : proxy_impl(nullptr),
       proxy_impl_weak_factory(nullptr),
       remote_channel_weak_ptr(remote_channel_weak_ptr) {}
 
 RemoteChannelImpl::CompositorThreadOnly::~CompositorThreadOnly() {}
 
 }  // namespace cc