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

ui/ozone/platform/egltest/ozone_platform_egltest.cc

Index: ui/ozone/platform/egltest/ozone_platform_egltest.cc
diff --git a/ui/ozone/platform/egltest/ozone_platform_egltest.cc b/ui/ozone/platform/egltest/ozone_platform_egltest.cc
index 2ec2a6649f40d48323d944d68a0ad556aaf2f7cc..d0facc121e1060423c951f38e48844a475595109 100644
--- a/ui/ozone/platform/egltest/ozone_platform_egltest.cc
+++ b/ui/ozone/platform/egltest/ozone_platform_egltest.cc
@@ -7,6 +7,7 @@
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/environment.h"
+#include "base/file_descriptor_posix.h"
 #include "base/files/file_path.h"
 #include "base/path_service.h"
 #include "base/threading/thread_checker.h"
@@ -27,6 +28,7 @@
 #include "ui/ozone/public/cursor_factory_ozone.h"
 #include "ui/ozone/public/gpu_platform_support.h"
 #include "ui/ozone/public/gpu_platform_support_host.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/surface_factory_ozone.h"
@@ -368,6 +370,9 @@ class OzonePlatformEgltest : public OzonePlatform {
   scoped_ptr<NativeDisplayDelegate> CreateNativeDisplayDelegate() override {
     return make_scoped_ptr(new NativeDisplayDelegateOzone());
   }
+  base::FileDescriptor GetVirtualDeviceFd() override {
+    return base::FileDescriptor();
+  }
 
   void InitializeUI() override {
     device_manager_ = CreateDeviceManager();
@@ -409,4 +414,8 @@ OzonePlatform* CreateOzonePlatformEgltest() {
   return platform;
 }
 
+NativePixmapManager* CreateNativePixmapManagerEgltest() {
+  return CreateStubNativePixmapManager();
+}
+
 }  // namespace ui