Revert of gpu: GPU service scheduler.

services/ui/public/cpp/gpu/context_provider_command_buffer.cc

 // Copyright (c) 2013 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 "services/ui/public/cpp/gpu/context_provider_command_buffer.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <set>
@@ skipping 134 matching lines @@
 }  // namespace
 
 namespace ui {
 
 ContextProviderCommandBuffer::SharedProviders::SharedProviders() = default;
 ContextProviderCommandBuffer::SharedProviders::~SharedProviders() = default;
 
 ContextProviderCommandBuffer::ContextProviderCommandBuffer(
     scoped_refptr<gpu::GpuChannelHost> channel,
     int32_t stream_id,
-    gpu::SchedulingPriority stream_priority,
+    gpu::GpuStreamPriority stream_priority,
     gpu::SurfaceHandle surface_handle,
     const GURL& active_url,
     bool automatic_flushes,
     bool support_locking,
     const gpu::SharedMemoryLimits& memory_limits,
     const gpu::gles2::ContextCreationAttribHelper& attributes,
     ContextProviderCommandBuffer* shared_context_provider,
     command_buffer_metrics::ContextType type)
     : stream_id_(stream_id),
       stream_priority_(stream_priority),
@@ skipping 292 matching lines @@
     context_thread_checker_.DetachFromThread();
     SkiaGpuTraceMemoryDump trace_memory_dump(
         pmd, gles2_impl_->ShareGroupTracingGUID());
     gr_context_->get()->dumpMemoryStatistics(&trace_memory_dump);
     context_thread_checker_.DetachFromThread();
   }
   return true;
 }
 
 }  // namespace ui