WIP GPU scheduler + delayed activation / tile draw

content/browser/renderer_host/context_provider_factory_impl_android.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 "content/browser/renderer_host/context_provider_factory_impl_android.h"
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "base/memory/ref_counted.h"
@@ skipping 137 matching lines @@
     command_buffer_metrics::ContextType context_type,
     gpu::SurfaceHandle surface_handle,
     gpu::SharedMemoryLimits shared_memory_limits,
     gpu::gles2::ContextCreationAttribHelper attributes,
     bool support_locking,
     bool automatic_flushes,
     cc::ContextProvider* shared_context_provider,
     scoped_refptr<gpu::GpuChannelHost> gpu_channel_host) {
   return make_scoped_refptr(new ContextProviderCommandBuffer(
       std::move(gpu_channel_host), gpu::GPU_STREAM_DEFAULT,
-      gpu::GpuStreamPriority::NORMAL, surface_handle,
+      gpu::GpuStreamPriority::REAL_TIME, surface_handle,
       GURL(std::string("chrome://gpu/ContextProviderFactoryImpl::") +
            std::string("CompositorContextProvider")),
       automatic_flushes, support_locking, shared_memory_limits, attributes,
       static_cast<ContextProviderCommandBuffer*>(shared_context_provider),
       context_type));
 }
 
 void ContextProviderFactoryImpl::HandlePendingRequests(
     scoped_refptr<gpu::GpuChannelHost> gpu_channel_host,
     GpuChannelHostResult result) {
@@ skipping 63 matching lines @@
         nullptr,
         GpuChannelHostResult::FAILURE_GPU_PROCESS_INITIALIZATION_FAILED);
   }
 }
 
 void ContextProviderFactoryImpl::OnGpuChannelTimeout() {
   LOG(FATAL) << "Timed out waiting for GPU channel.";
 }
 
 }  // namespace content