ozone: Introduce ClientPixmap and ClientPixmapFactory for non-GPU processes.

ui/ozone/public/surface_factory_ozone.cc

Index: ui/ozone/public/surface_factory_ozone.cc
diff --git a/ui/ozone/public/surface_factory_ozone.cc b/ui/ozone/public/surface_factory_ozone.cc
index 70a81ad7d57587ff4b105949b485678e6c5b18ba..f020795d62989cb6dd51e2a19785b365dd82aada 100644
--- a/ui/ozone/public/surface_factory_ozone.cc
+++ b/ui/ozone/public/surface_factory_ozone.cc
@@ -50,8 +50,8 @@ const int32* SurfaceFactoryOzone::GetEGLSurfaceProperties(
 scoped_refptr<ui::NativePixmap> SurfaceFactoryOzone::CreateNativePixmap(
     gfx::AcceleratedWidget widget,
     gfx::Size size,
-    BufferFormat format,
-    BufferUsage usage) {
+    PixmapFormat format,
+    PixmapUsage usage) {
   return NULL;
 }
 
@@ -59,8 +59,4 @@ bool SurfaceFactoryOzone::CanShowPrimaryPlaneAsOverlay() {
   return false;
 }
 
-bool SurfaceFactoryOzone::CanCreateNativePixmap(BufferUsage usage) {
-  return false;
-}
-
 }  // namespace ui