Change namespace from ui to gfx for NativePixmap related code

gpu/ipc/common/gpu_memory_buffer_support.cc

Index: gpu/ipc/common/gpu_memory_buffer_support.cc
diff --git a/gpu/ipc/common/gpu_memory_buffer_support.cc b/gpu/ipc/common/gpu_memory_buffer_support.cc
index 122839d21279a78c8b2c1eb52ed891849e3d3fdf..3dfc6041fad2a4e84efde86c9098ea213fa4bedf 100644
--- a/gpu/ipc/common/gpu_memory_buffer_support.cc
+++ b/gpu/ipc/common/gpu_memory_buffer_support.cc
@@ -47,12 +47,12 @@ bool IsNativeGpuMemoryBufferConfigurationSupported(gfx::BufferFormat format,
 #endif
 
 #if defined(USE_OZONE)
-  if (!ui::ClientNativePixmapFactory::GetInstance()) {
+  if (!gfx::ClientNativePixmapFactory::GetInstance()) {
     // unittests don't have to set ClientNativePixmapFactory.
     return false;
   }
-  return ui::ClientNativePixmapFactory::GetInstance()->IsConfigurationSupported(
-      format, usage);
+  return gfx::ClientNativePixmapFactory::GetInstance()
+      ->IsConfigurationSupported(format, usage);
 #endif
 
   NOTREACHED();