GL Implementation for GPU Discardable

gpu/command_buffer/client/share_group.h

Index: gpu/command_buffer/client/share_group.h
diff --git a/gpu/command_buffer/client/share_group.h b/gpu/command_buffer/client/share_group.h
index 091b69f2385034d354e2f5946dcecabc67d4d2a2..2ec497c82cbe87fd099374cfee91fe98659dd72e 100644
--- a/gpu/command_buffer/client/share_group.h
+++ b/gpu/command_buffer/client/share_group.h
@@ -13,6 +13,7 @@
 #include "base/macros.h"
 #include "base/synchronization/lock.h"
 #include "gles2_impl_export.h"
+#include "gpu/command_buffer/client/client_discardable_manager.h"
 #include "gpu/command_buffer/client/ref_counted.h"
 #include "gpu/command_buffer/common/gles2_cmd_format.h"
 
@@ -147,6 +148,10 @@ class GLES2_IMPL_EXPORT ShareGroup
 
   uint64_t TracingGUID() const { return tracing_guid_; }
 
+  ClientDiscardableManager* discardable_manager() {
+    return &discardable_manager_;
+  }
+
   // Mark the ShareGroup as lost when an error occurs on any context in the
   // group. This is thread safe as contexts may be on different threads.
   void Lose();
@@ -167,6 +172,7 @@ class GLES2_IMPL_EXPORT ShareGroup
   std::unique_ptr<RangeIdHandlerInterface>
       range_id_handlers_[id_namespaces::kNumRangeIdNamespaces];
   std::unique_ptr<ProgramInfoManager> program_info_manager_;
+  ClientDiscardableManager discardable_manager_;
 
   bool bind_generates_resource_;
   uint64_t tracing_guid_;