Allow task pools to reason about transparency.

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 316 matching lines @@
 }
 
 ResourceProvider::Child::~Child() {}
 
 scoped_ptr<ResourceProvider> ResourceProvider::Create(
     OutputSurface* output_surface,
     SharedBitmapManager* shared_bitmap_manager,
     gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
     BlockingTaskRunner* blocking_main_thread_task_runner,
     int highp_threshold_min,
-    bool use_rgba_4444_texture_format,
     size_t id_allocation_chunk_size,
     const std::vector<unsigned>& use_image_texture_targets) {
   scoped_ptr<ResourceProvider> resource_provider(new ResourceProvider(
       output_surface, shared_bitmap_manager, gpu_memory_buffer_manager,
       blocking_main_thread_task_runner, highp_threshold_min,
-      use_rgba_4444_texture_format, id_allocation_chunk_size,
-      use_image_texture_targets));
+      id_allocation_chunk_size, use_image_texture_targets));
   resource_provider->Initialize();
   return resource_provider;
 }
 
 ResourceProvider::~ResourceProvider() {
   base::trace_event::MemoryDumpManager::GetInstance()->UnregisterDumpProvider(
       this);
 
   while (!children_.empty())
     DestroyChildInternal(children_.begin(), FOR_SHUTDOWN);
@@ skipping 659 matching lines @@
   TRACE_EVENT0("cc", "ResourceProvider::SynchronousFence::Synchronize");
   gl_->Finish();
 }
 
 ResourceProvider::ResourceProvider(
     OutputSurface* output_surface,
     SharedBitmapManager* shared_bitmap_manager,
     gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
     BlockingTaskRunner* blocking_main_thread_task_runner,
     int highp_threshold_min,
-    bool use_rgba_4444_texture_format,
     size_t id_allocation_chunk_size,
     const std::vector<unsigned>& use_image_texture_targets)
     : output_surface_(output_surface),
       shared_bitmap_manager_(shared_bitmap_manager),
       gpu_memory_buffer_manager_(gpu_memory_buffer_manager),
       blocking_main_thread_task_runner_(blocking_main_thread_task_runner),
       lost_output_surface_(false),
       highp_threshold_min_(highp_threshold_min),
       next_id_(1),
       next_child_(1),
       default_resource_type_(RESOURCE_TYPE_BITMAP),
       use_texture_storage_ext_(false),
       use_texture_format_bgra_(false),
       use_texture_usage_hint_(false),
       use_compressed_texture_etc1_(false),
       yuv_resource_format_(LUMINANCE_8),
       max_texture_size_(0),
       best_texture_format_(RGBA_8888),
       best_render_buffer_format_(RGBA_8888),
-      use_rgba_4444_texture_format_(use_rgba_4444_texture_format),
       id_allocation_chunk_size_(id_allocation_chunk_size),
       use_sync_query_(false),
       use_image_texture_targets_(use_image_texture_targets),
       tracing_id_(g_next_resource_provider_tracing_id.GetNext()) {
   DCHECK(output_surface_->HasClient());
   DCHECK(id_allocation_chunk_size_);
 }
 
 void ResourceProvider::Initialize() {
   DCHECK(thread_checker_.CalledOnValidThread());
@@ skipping 605 matching lines @@
       const int kImportance = 2;
       pmd->CreateSharedGlobalAllocatorDump(guid);
       pmd->AddOwnershipEdge(dump->guid(), guid, kImportance);
     }
   }
 
   return true;
 }
 
 }  // namespace cc