Added support for Time Elapsed queries through the command buffer.

ui/gl/gpu_timing.cc

Index: ui/gl/gpu_timing.cc
diff --git a/ui/gl/gpu_timing.cc b/ui/gl/gpu_timing.cc
index 65110b69cdad388d3636ac0c51b26902a2c32969..c90225434d6fddbcdc42cbe8306ab2ef98186ca2 100644
--- a/ui/gl/gpu_timing.cc
+++ b/ui/gl/gpu_timing.cc
@@ -203,15 +203,13 @@ class TimeElapsedTimerQuery : public TimerQuery {
       return false;
     }
 
-    GLint done = 0;
-    glGetQueryObjectiv(gl_query_id_, GL_QUERY_RESULT_AVAILABLE, &done);
+    GLuint done = 0;
+    glGetQueryObjectuiv(gl_query_id_, GL_QUERY_RESULT_AVAILABLE, &done);
     return !!done;
   }
 
   // Fills out query result start and end, called after IsAvailable() is true.
   void UpdateQueryResults(GPUTimingImpl* gpu_timing) override {
-    DCHECK(IsAvailable(gpu_timing));
-
     GLuint64 result_value = 0;
     glGetQueryObjectui64v(gl_query_id_, GL_QUERY_RESULT, &result_value);
     const int64_t micro_results = NanoToMicro(result_value);
@@ -277,8 +275,8 @@ class TimeStampTimerQuery : public TimerQuery {
 
   // Returns true when UpdateQueryResults() is ready to be called.
   bool IsAvailable(GPUTimingImpl* gpu_timing) override {
-    GLint done = 0;
-    glGetQueryObjectiv(gl_query_id_, GL_QUERY_RESULT_AVAILABLE, &done);
+    GLuint done = 0;
+    glGetQueryObjectuiv(gl_query_id_, GL_QUERY_RESULT_AVAILABLE, &done);
     return !!done;
   }