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

ui/ozone/platform/test/ozone_platform_test.cc

Index: ui/ozone/platform/test/ozone_platform_test.cc
diff --git a/ui/ozone/platform/test/ozone_platform_test.cc b/ui/ozone/platform/test/ozone_platform_test.cc
index c6da9e3aa73aff483f148a75538f4c894feea749..789d752c9681a78b128656990a712359501e0b12 100644
--- a/ui/ozone/platform/test/ozone_platform_test.cc
+++ b/ui/ozone/platform/test/ozone_platform_test.cc
@@ -5,6 +5,7 @@
 #include "ui/ozone/platform/test/ozone_platform_test.h"
 
 #include "base/command_line.h"
+#include "base/file_descriptor_posix.h"
 #include "base/files/file_path.h"
 #include "ui/base/cursor/ozone/bitmap_cursor_factory_ozone.h"
 #include "ui/events/ozone/layout/keyboard_layout_engine_manager.h"
@@ -18,6 +19,7 @@
 #include "ui/ozone/public/gpu_platform_support.h"
 #include "ui/ozone/public/gpu_platform_support_host.h"
 #include "ui/ozone/public/input_controller.h"
+#include "ui/ozone/public/native_pixmap_manager.h"
 #include "ui/ozone/public/ozone_platform.h"
 #include "ui/ozone/public/ozone_switches.h"
 #include "ui/ozone/public/system_input_injector.h"
@@ -76,6 +78,9 @@ class OzonePlatformTest : public OzonePlatform {
   scoped_ptr<NativeDisplayDelegate> CreateNativeDisplayDelegate() override {
     return make_scoped_ptr(new NativeDisplayDelegateOzone());
   }
+  base::FileDescriptor GetVirtualDeviceFd() override {
+    return base::FileDescriptor();
+  }
 
   void InitializeUI() override {
     window_manager_.reset(new TestWindowManager(file_path_));
@@ -119,4 +124,8 @@ OzonePlatform* CreateOzonePlatformTest() {
   return new OzonePlatformTest(location);
 }
 
+NativePixmapManager* CreateNativePixmapManagerTest() {
+  return CreateStubNativePixmapManager();
+}
+
 }  // namespace ui