blimp: Add logging for compositor and render widget feature.

blimp/client/feature/compositor/blimp_compositor.cc

 // Copyright 2015 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 "blimp/client/feature/compositor/blimp_compositor.h"
 
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/numerics/safe_conversions.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 147 matching lines @@
 
 void BlimpCompositor::SendWebGestureEvent(
     const blink::WebGestureEvent& gesture_event) {
   client_->SendWebGestureEvent(render_widget_id_, gesture_event);
 }
 
 void BlimpCompositor::SetVisibleInternal(bool visible) {
   if (!host_)
     return;
 
+  VLOG(1) << "Setting visibility to: " << visible
+          << " for render widget: " << render_widget_id_;
+
   if (visible && window_ != gfx::kNullAcceleratedWidget) {
     // If we're supposed to be visible and we have a valid
     // gfx::AcceleratedWidget make our compositor visible. If the compositor
     // had an outstanding output surface request, trigger the request again so
     // we build the output surface.
     host_->SetVisible(true);
     if (output_surface_request_pending_)
       HandlePendingOutputSurfaceRequest();
   } else if (!visible) {
     // If not visible, hide the compositor and have it drop it's output
     // surface.
     host_->SetVisible(false);
     if (!host_->output_surface_lost()) {
       host_->ReleaseOutputSurface();
     }
   }
 }
 
 void BlimpCompositor::CreateLayerTreeHost(
     const cc::proto::InitializeImpl& initialize_message) {
   DCHECK(!host_);
+  VLOG(1) << "Creating LayerTreeHost for render widget: " << render_widget_id_;
 
   // Create the LayerTreeHost
   cc::LayerTreeHost::InitParams params;
   params.client = this;
   params.task_graph_runner = client_->GetTaskGraphRunner();
   params.gpu_memory_buffer_manager = client_->GetGpuMemoryBufferManager();
   params.main_task_runner = base::ThreadTaskRunnerHandle::Get();
   params.image_serialization_processor =
       client_->GetImageSerializationProcessor();
   params.settings = client_->GetLayerTreeSettings();
@@ skipping 11 matching lines @@
   DCHECK(!input_manager_);
   input_manager_ =
       BlimpInputManager::Create(this,
                                 base::ThreadTaskRunnerHandle::Get(),
                                 compositor_task_runner,
                                 host_->GetInputHandler());
 }
 
 void BlimpCompositor::DestroyLayerTreeHost() {
   DCHECK(host_);
+  VLOG(1) << "Destroying LayerTreeHost for render widget: "
+          << render_widget_id_;
   // Tear down the output surface connection with the old LayerTreeHost
   // instance.
   SetVisibleInternal(false);
 
   // Destroy the old LayerTreeHost state.
   host_.reset();
 
   // Destroy the old input manager state.
   // It is important to destroy the LayerTreeHost before destroying the input
   // manager as it has a reference to the cc::InputHandlerClient owned by the
@@ skipping 20 matching lines @@
       BlimpContextProvider::Create(window_,
                                    client_->GetGpuMemoryBufferManager());
 
   host_->SetOutputSurface(
       make_scoped_ptr(new BlimpOutputSurface(context_provider)));
   output_surface_request_pending_ = false;
 }
 
 }  // namespace client
 }  // namespace blimp