Revert of gpu: GPU service scheduler.

content/browser/renderer_host/compositor_impl_android.cc

Index: content/browser/renderer_host/compositor_impl_android.cc
diff --git a/content/browser/renderer_host/compositor_impl_android.cc b/content/browser/renderer_host/compositor_impl_android.cc
index 335a30f3b93915ff6825be553f74bd12df3c7040..9420ce9d3aa7630f1dbf83fc17ac60cca319c6ee 100644
--- a/content/browser/renderer_host/compositor_impl_android.cc
+++ b/content/browser/renderer_host/compositor_impl_android.cc
@@ -54,7 +54,6 @@
 #include "content/browser/gpu/browser_gpu_memory_buffer_manager.h"
 #include "content/browser/gpu/compositor_util.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
-#include "content/common/gpu_stream_constants.h"
 #include "content/public/browser/android/compositor.h"
 #include "content/public/browser/android/compositor_client.h"
 #include "content/public/common/content_switches.h"
@@ -204,15 +203,12 @@
   if (!gpu_channel_host)
     callback.Run(nullptr);
 
-  int32_t stream_id = kGpuStreamIdDefault;
-  gpu::SchedulingPriority stream_priority = kGpuStreamPriorityUI;
-
   constexpr bool automatic_flushes = false;
   constexpr bool support_locking = false;
-
   scoped_refptr<ui::ContextProviderCommandBuffer> context_provider =
       new ui::ContextProviderCommandBuffer(
-          std::move(gpu_channel_host), stream_id, stream_priority, handle,
+          std::move(gpu_channel_host), gpu::GPU_STREAM_DEFAULT,
+          gpu::GpuStreamPriority::NORMAL, handle,
           GURL(std::string("chrome://gpu/Compositor::CreateContextProvider")),
           automatic_flushes, support_locking, shared_memory_limits, attributes,
           nullptr /* shared_context */,
@@ -723,18 +719,13 @@
 
   DCHECK(window_);
   DCHECK_NE(surface_handle_, gpu::kNullSurfaceHandle);
-
-  int32_t stream_id = kGpuStreamIdDefault;
-  gpu::SchedulingPriority stream_priority = kGpuStreamPriorityUI;
-
   constexpr bool support_locking = false;
   constexpr bool automatic_flushes = false;
-
   ui::ContextProviderCommandBuffer* shared_context = nullptr;
   scoped_refptr<ui::ContextProviderCommandBuffer> context_provider =
       new ui::ContextProviderCommandBuffer(
-          std::move(gpu_channel_host), stream_id, stream_priority,
-          surface_handle_,
+          std::move(gpu_channel_host), gpu::GPU_STREAM_DEFAULT,
+          gpu::GpuStreamPriority::NORMAL, surface_handle_,
           GURL(std::string("chrome://gpu/CompositorImpl::") +
                std::string("CompositorContextProvider")),
           automatic_flushes, support_locking,