Make glGetQueryObjectuivEXT return true for GL_QUERY_RESULT_AVAILABLE_EXT

gpu/command_buffer/client/cmd_buffer_helper.h

Index: gpu/command_buffer/client/cmd_buffer_helper.h
diff --git a/gpu/command_buffer/client/cmd_buffer_helper.h b/gpu/command_buffer/client/cmd_buffer_helper.h
index 1ba1bf79fb2221bffa6230a4357708c5ae1b4b87..99227942ca447c84e57aa4f91fa1ea316e8319d7 100644
--- a/gpu/command_buffer/client/cmd_buffer_helper.h
+++ b/gpu/command_buffer/client/cmd_buffer_helper.h
@@ -44,6 +44,9 @@ class GPU_EXPORT CommandBufferHelper {
   //       buffer.
   bool Initialize(int32 ring_buffer_size);
 
+  // True if the context is lost.
+  bool IsContextLost();
+
   // Asynchronously flushes the commands, setting the put pointer to let the
   // buffer interface know that new commands have been added. After a flush
   // returns, the command buffer service is aware of all pending commands.
@@ -288,6 +291,7 @@ class GPU_EXPORT CommandBufferHelper {
   int32 last_put_sent_;
   int commands_issued_;
   bool usable_;
+  bool context_lost_;
 
   // Using C runtime instead of base because this file cannot depend on base.
   clock_t last_flush_time_;