Mac Overlays: Allow SolidColor and Tile quads to be candidates for overlays.

cc/resources/resource_provider.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/resources/resource_provider.h"
 
 #include <algorithm>
 #include <limits>
 
 #include "base/atomic_sequence_num.h"
@@ skipping 858 matching lines @@
       resource_(resource_provider->LockForWrite(resource_id)) {
   ResourceProvider::PopulateSkBitmapWithResource(&sk_bitmap_, resource_);
   DCHECK(valid());
 }
 
 ResourceProvider::ScopedWriteLockSoftware::~ScopedWriteLockSoftware() {
   DCHECK(thread_checker_.CalledOnValidThread());
   resource_provider_->UnlockForWrite(resource_);
 }
 
+ResourceProvider::ScopedReadLockGpuMemoryBuffer::ScopedReadLockGpuMemoryBuffer(
+    ResourceProvider* resource_provider,
+    ResourceId resource_id)
+    : resource_provider_(resource_provider), resource_id_(resource_id) {
+  const Resource* resource = resource_provider->GetResource(resource_id);
+  image_id_ = resource->image_id;
+}
+
+ResourceProvider::ScopedReadLockGpuMemoryBuffer::
+    ~ScopedReadLockGpuMemoryBuffer() {
+}
+
 ResourceProvider::ScopedWriteLockGpuMemoryBuffer::
     ScopedWriteLockGpuMemoryBuffer(ResourceProvider* resource_provider,
                                    ResourceId resource_id)
     : resource_provider_(resource_provider),
       resource_(resource_provider->LockForWrite(resource_id)),
       gpu_memory_buffer_manager_(resource_provider->gpu_memory_buffer_manager_),
       gpu_memory_buffer_(nullptr),
       size_(resource_->size),
       format_(resource_->format) {
   DCHECK_EQ(RESOURCE_TYPE_GL_TEXTURE, resource_->type);
@@ skipping 771 matching lines @@
       const int kImportance = 2;
       pmd->CreateSharedGlobalAllocatorDump(guid);
       pmd->AddOwnershipEdge(dump->guid(), guid, kImportance);
     }
   }
 
   return true;
 }
 
 }  // namespace cc