Replacing GLSurface::SetVisibility with SetBufferAllocation for more explicit management.

content/common/gpu/gpu_command_buffer_stub.cc

  // Copyright (c) 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.
 
 #if defined(ENABLE_GPU)
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 546 matching lines @@
                       channel_->renderer_process());
 }
 
 void GpuCommandBufferStub::OnDestroyVideoDecoder(int decoder_route_id) {
   channel_->RemoveRoute(decoder_route_id);
   video_decoders_.Remove(decoder_route_id);
 }
 
 void GpuCommandBufferStub::OnSetSurfaceVisible(bool visible) {
   if (visible)
-    surface_->SetVisibility(gfx::GLSurface::VISIBILITY_STATE_FOREGROUND);
+    surface_->SetBufferAllocation(
+        gfx::GLSurface::BUFFER_ALLOCATION_FRONT_AND_BACK);
   DCHECK(surface_state_.get());
   surface_state_->visible = visible;
   surface_state_->last_used_time = base::TimeTicks::Now();
   channel_->gpu_channel_manager()->gpu_memory_manager()->ScheduleManage();
 }
 
 void GpuCommandBufferStub::SendConsoleMessage(
     int32 id,
     const std::string& message) {
   GPUCommandBufferConsoleMessage console_message;
@@ skipping 40 matching lines @@
     const GpuMemoryAllocation& allocation) {
   if (allocation == allocation_)
     return;
   allocation_ = allocation;
 
   SendMemoryAllocationToProxy(allocation);
 
   if (!surface_)
     return;
   if (allocation.has_frontbuffer && allocation.has_backbuffer)
-    surface_->SetVisibility(gfx::GLSurface::VISIBILITY_STATE_FOREGROUND);
+    surface_->SetBufferAllocation(
+        gfx::GLSurface::BUFFER_ALLOCATION_FRONT_AND_BACK);
   else if (allocation.has_frontbuffer)
-    surface_->SetVisibility(gfx::GLSurface::VISIBILITY_STATE_BACKGROUND);
+    surface_->SetBufferAllocation(
+        gfx::GLSurface::BUFFER_ALLOCATION_FRONT_ONLY);
   else
-    surface_->SetVisibility(gfx::GLSurface::VISIBILITY_STATE_HIBERNATED);
+    surface_->SetBufferAllocation(
+        gfx::GLSurface::BUFFER_ALLOCATION_NONE);
 }
 
 #endif  // defined(ENABLE_GPU)