GL Implementation for GPU Discardable

gpu/command_buffer/service/context_group.h

Index: gpu/command_buffer/service/context_group.h
diff --git a/gpu/command_buffer/service/context_group.h b/gpu/command_buffer/service/context_group.h
index c2ebbfb2900dc34e8c55760771f436996a94927f..84102f7be92d0a447b679d718b1f036d89a8c2fb 100644
--- a/gpu/command_buffer/service/context_group.h
+++ b/gpu/command_buffer/service/context_group.h
@@ -29,6 +29,7 @@ namespace gpu {
 class ImageFactory;
 struct GpuPreferences;
 class TransferBufferManager;
+class ServiceDiscardableManager;
 
 namespace gles2 {
 
@@ -67,7 +68,8 @@ class GPU_EXPORT ContextGroup : public base::RefCounted<ContextGroup> {
       bool bind_generates_resource,
       gpu::ImageFactory* image_factory,
       ProgressReporter* progress_reporter,
-      const GpuFeatureInfo& gpu_feature_info);
+      const GpuFeatureInfo& gpu_feature_info,
+      const scoped_refptr<ServiceDiscardableManager>& discardable_manager);
 
   // This should only be called by GLES2Decoder. This must be paired with a
   // call to destroy if it succeeds.
@@ -204,6 +206,10 @@ class GPU_EXPORT ContextGroup : public base::RefCounted<ContextGroup> {
     return sampler_manager_.get();
   }
 
+  ServiceDiscardableManager* discardable_manager() const {
+    return discardable_manager_.get();
+  }
+
   uint32_t GetMemRepresented() const;
 
   // Loses all the context associated with this group.
@@ -312,6 +318,8 @@ class GPU_EXPORT ContextGroup : public base::RefCounted<ContextGroup> {
 
   GpuFeatureInfo gpu_feature_info_;
 
+  const scoped_refptr<ServiceDiscardableManager> discardable_manager_;
+
   DISALLOW_COPY_AND_ASSIGN(ContextGroup);
 };