Change namespace from ui to gfx for NativePixmap related code

components/exo/display_unittest.cc

 // Copyright 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.
 
 #include "ash/public/cpp/shell_window_ids.h"
 #include "components/exo/buffer.h"
 #include "components/exo/display.h"
 #include "components/exo/shared_memory.h"
 #include "components/exo/shell_surface.h"
 #include "components/exo/sub_surface.h"
@@ skipping 43 matching lines @@
   EXPECT_FALSE(shm2);
 }
 
 #if defined(USE_OZONE)
 // The test crashes: crbug.com/622724
 TEST_F(DisplayTest, DISABLED_CreateLinuxDMABufBuffer) {
   const gfx::Size buffer_size(256, 256);
 
   std::unique_ptr<Display> display(new Display);
   // Creating a prime buffer from a native pixmap handle should succeed.
-  scoped_refptr<ui::NativePixmap> pixmap =
+  scoped_refptr<gfx::NativePixmap> pixmap =
       ui::OzonePlatform::GetInstance()
           ->GetSurfaceFactoryOzone()
           ->CreateNativePixmap(gfx::kNullAcceleratedWidget, buffer_size,
                                gfx::BufferFormat::RGBA_8888,
                                gfx::BufferUsage::GPU_READ);
   gfx::NativePixmapHandle native_pixmap_handle = pixmap->ExportHandle();
   std::vector<gfx::NativePixmapPlane> planes;
   std::vector<base::ScopedFD> fds;
   planes.push_back(native_pixmap_handle.planes[0]);
   fds.push_back(base::ScopedFD(native_pixmap_handle.fds[0].fd));
@@ skipping 142 matching lines @@
   // Attempting to create a sub surface for parent with grandchild as its parent
   // should fail.
   EXPECT_FALSE(display->CreateSubSurface(parent.get(), grandchild.get()));
 
   // Create a sub surface for parent.
   EXPECT_TRUE(display->CreateSubSurface(parent.get(), toplevel.get()));
 }
 
 }  // namespace
 }  // namespace exo