Added support for Time Elapsed queries through the command buffer.

gpu/command_buffer/client/query_tracker.h

Index: gpu/command_buffer/client/query_tracker.h
diff --git a/gpu/command_buffer/client/query_tracker.h b/gpu/command_buffer/client/query_tracker.h
index e83e041a712b926177ad6be0e2c2d39be79f851d..6271b19d9849ff8f81bb251c595595b76584b91a 100644
--- a/gpu/command_buffer/client/query_tracker.h
+++ b/gpu/command_buffer/client/query_tracker.h
@@ -131,7 +131,7 @@ class GLES2_IMPL_EXPORT QueryTracker {
 
     bool CheckResultsAvailable(CommandBufferHelper* helper);
 
-    uint32 GetResult() const;
+    uint64 GetResult() const;
 
     void Begin(GLES2Implementation* gl);
     void End(GLES2Implementation* gl);
@@ -148,7 +148,7 @@ class GLES2_IMPL_EXPORT QueryTracker {
     int32 token_;
     uint32 flush_count_;
     uint64 client_begin_time_us_; // Only used for latency query target.
-    uint32 result_;
+    uint64 result_;
   };
 
   QueryTracker(MappedMemoryManager* manager);