viz: Use a simple GpuMemoryBufferManager implementation.

components/viz/service/display_compositor/gpu_display_provider.h

Index: components/viz/service/display_compositor/gpu_display_provider.h
diff --git a/components/viz/service/display_compositor/gpu_display_provider.h b/components/viz/service/display_compositor/gpu_display_provider.h
index 1afb34adde8a07bae74bc95870f8d31b3a51c2d4..ab936fe827b6d249b59ac679de298e32253897a0 100644
--- a/components/viz/service/display_compositor/gpu_display_provider.h
+++ b/components/viz/service/display_compositor/gpu_display_provider.h
@@ -18,6 +18,7 @@
 #include "gpu/ipc/in_process_command_buffer.h"
 
 namespace gpu {
+class GpuChannelManager;
 class ImageFactory;
 }
 
@@ -29,8 +30,7 @@ class VIZ_SERVICE_EXPORT GpuDisplayProvider
  public:
   GpuDisplayProvider(
       scoped_refptr<gpu::InProcessCommandBuffer::Service> gpu_service,
-      std::unique_ptr<gpu::GpuMemoryBufferManager> gpu_memory_buffer_manager,
-      gpu::ImageFactory* image_factory);
+      gpu::GpuChannelManager* gpu_channel_manager);
   ~GpuDisplayProvider() override;
 
   // DisplayProvider: