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

ui/gl/gl_implementation_win.cc

Index: ui/gl/gl_implementation_win.cc
diff --git a/ui/gl/gl_implementation_win.cc b/ui/gl/gl_implementation_win.cc
index 9cffe3cc0a9f88923ecb8a1020eb53d365ca850c..4b1db59672eeaa143add6292b3d0cbf3d271e03d 100644
--- a/ui/gl/gl_implementation_win.cc
+++ b/ui/gl/gl_implementation_win.cc
@@ -32,7 +32,7 @@
 #include "software_renderer.h"
 #endif
 
-namespace gfx {
+namespace gl {
 
 namespace {
 
@@ -215,8 +215,8 @@ bool InitializeStaticGLBindings(GLImplementation implementation) {
 
       // These two functions take single precision float rather than double
       // precision float parameters in GLES.
-      ::gfx::g_driver_gl.fn.glClearDepthFn = MarshalClearDepthToClearDepthf;
-      ::gfx::g_driver_gl.fn.glDepthRangeFn = MarshalDepthRangeToDepthRangef;
+      ::gl::g_driver_gl.fn.glClearDepthFn = MarshalClearDepthToClearDepthf;
+      ::gl::g_driver_gl.fn.glDepthRangeFn = MarshalDepthRangeToDepthRangef;
       break;
     }
     case kGLImplementationDesktopGL: {
@@ -352,4 +352,4 @@ bool GetGLWindowSystemBindingInfo(GLWindowSystemBindingInfo* info) {
   }
 }
 
-}  // namespace gfx
+}  // namespace gl