Making OutputSurface a begin frame source and vsync source.

cc/test/fake_output_surface.cc

 // Copyright 2012 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/test/fake_output_surface.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "cc/output/compositor_frame_ack.h"
 #include "cc/output/output_surface_client.h"
@@ skipping 64 matching lines @@
     ++num_sent_frames_;
     PostSwapBuffersComplete();
     client_->DidSwapBuffers();
   } else {
     OutputSurface::SwapBuffers(frame);
     frame->AssignTo(&last_sent_frame_);
     ++num_sent_frames_;
   }
 }
 
-void FakeOutputSurface::SetNeedsBeginFrame(bool enable) {
-  needs_begin_frame_ = enable;
-  OutputSurface::SetNeedsBeginFrame(enable);
+void FakeOutputSurface::SetNeedsBeginFrames(bool enable) {
+  OutputSurface::SetNeedsBeginFrames(enable);
+  if (enable)
+    OnBeginFrame();
+}
 
-  if (enable) {
+void FakeOutputSurface::OnBeginFrame() {
+  if (NeedsBeginFrames()) {
+    SendBeginFrame(CreateBeginFrameArgsForTesting());
+
     base::MessageLoop::current()->PostDelayedTask(
         FROM_HERE,
         base::Bind(&FakeOutputSurface::OnBeginFrame,
                    fake_weak_ptr_factory_.GetWeakPtr()),
         base::TimeDelta::FromMilliseconds(16));
   }
 }
 
-void FakeOutputSurface::OnBeginFrame() {
-  client_->BeginFrame(CreateBeginFrameArgsForTesting());
+void FakeOutputSurface::AsValueInto(base::debug::TracedValue* dict) const {
+  dict->SetString("type", "FakeOutputSurface");
 }
 
-
 bool FakeOutputSurface::BindToClient(OutputSurfaceClient* client) {
   if (OutputSurface::BindToClient(client)) {
     client_ = client;
     if (memory_policy_to_set_at_bind_) {
       client_->SetMemoryPolicy(*memory_policy_to_set_at_bind_.get());
       memory_policy_to_set_at_bind_.reset();
     }
     return true;
   } else {
     return false;
@@ skipping 22 matching lines @@
 bool FakeOutputSurface::HasExternalStencilTest() const {
   return has_external_stencil_test_;
 }
 
 void FakeOutputSurface::SetMemoryPolicyToSetAtBind(
     scoped_ptr<ManagedMemoryPolicy> memory_policy_to_set_at_bind) {
   memory_policy_to_set_at_bind_.swap(memory_policy_to_set_at_bind);
 }
 
 }  // namespace cc