Move code in ui/gl/* from gfx:: to gl::

ui/gl/gpu_timing.h

 // Copyright (c) 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_GL_GPU_TIMING_H_
 #define UI_GL_GPU_TIMING_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 25 matching lines @@
 //     Each virtual context as well as any other classes which need GPU times
 //     will hold one of these. When they want to time a set of GL commands they
 //     will create GPUTimer objects.
 //   GPUTimer - Once a user decides to time something, the user creates a new
 //     GPUTimer object from a GPUTimingClient and issue Start() and Stop() calls
 //     around various GL calls. Once IsAvailable() returns true, the GPU times
 //     will be available through the various time stamp related functions.
 //     The constructor and destructor of this object handles the actual
 //     creation and deletion of the GL Queries within GL.
 
-namespace gfx {
+namespace gl {
 
 class GLContextReal;
 class GPUTimingClient;
 class GPUTimingImpl;
 class QueryResult;
 
 class GPUTiming {
  public:
   enum TimerType {
     kTimerTypeInvalid = -1,
@@ skipping 95 matching lines @@
 
   virtual ~GPUTimingClient();
 
   GPUTimingImpl* gpu_timing_;
   GPUTiming::TimerType timer_type_ = GPUTiming::kTimerTypeInvalid;
   uint32_t disjoint_counter_ = 0;
 
   DISALLOW_COPY_AND_ASSIGN(GPUTimingClient);
 };
 
-}  // namespace gfx
+}  // namespace gl
 
 #endif  // UI_GL_GPU_TIMING_H_