Make cc::SoftwareImageDecodeController, cc::ResourcePool, and cc::StagingBufferPoo…

cc/raster/staging_buffer_pool.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/raster/staging_buffer_pool.h"
 
 #include <memory>
 
 #include "base/memory/ptr_util.h"
 #include "base/strings/stringprintf.h"
@@ skipping 44 matching lines @@
 }
 
 }  // namespace
 
 StagingBuffer::StagingBuffer(const gfx::Size& size, ResourceFormat format)
     : size(size),
       format(format),
       texture_id(0),
       image_id(0),
       query_id(0),
       content_id(0) {}

[tasak, 2016/08/26 10:08:04]

Need to register this with ChildMemoryCoordinator here.

 
 StagingBuffer::~StagingBuffer() {
   DCHECK_EQ(texture_id, 0u);
   DCHECK_EQ(image_id, 0u);
   DCHECK_EQ(query_id, 0u);

[tasak, 2016/08/26 10:08:04]

Need to unregister this with ChildMemoryCoordinator here.

 }
 
 void StagingBuffer::DestroyGLResources(gpu::gles2::GLES2Interface* gl) {
   if (query_id) {
     gl->DeleteQueriesEXT(1, &query_id);
     query_id = 0;
   }
   if (image_id) {
     gl->DestroyImageCHROMIUM(image_id);
     image_id = 0;
@@ skipping 321 matching lines @@
       if (busy_buffers_.front()->last_usage > time)
         return;
 
       busy_buffers_.front()->DestroyGLResources(gl);
       RemoveStagingBuffer(busy_buffers_.front().get());
       busy_buffers_.pop_front();
     }
   }
 }
 
+void StagingBufferPool::OnMemoryStateChange(
+    memory_coordinator::mojom::MemoryState state) {
+  if (state == memory_coordinator::mojom::MemoryState::SUSPENDED) {
+    base::AutoLock lock(lock_);
+    if (buffers_.empty())
+      return;
+    ReleaseBuffersNotUsedSince(base::TimeTicks() + base::TimeDelta::Max());
+  }
+}
+
 }  // namespace cc