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 d94fde97707f0cdd31e5db7ac966355656f59a52..77ff3ca5f7476a37869730d1ed0b03b13f556edc 100644
--- a/ui/ozone/platform/test/ozone_platform_test.cc
+++ b/ui/ozone/platform/test/ozone_platform_test.cc
@@ -17,8 +17,10 @@
 #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/ozone_client.h"
 #include "ui/ozone/public/ozone_platform.h"
 #include "ui/ozone/public/ozone_switches.h"
+#include "ui/ozone/public/surface_client_factory_ozone.h"
 #include "ui/ozone/public/system_input_injector.h"
 
 namespace ui {
@@ -103,6 +105,32 @@ class OzonePlatformTest : public OzonePlatform {
   DISALLOW_COPY_AND_ASSIGN(OzonePlatformTest);
 };
 
+class OzoneClientTest : public OzoneClient {
+ public:
+  OzoneClientTest() {}
+  ~OzoneClientTest() override {}
+
+  // OzoneClient:
+  SurfaceClientFactoryOzone* GetSurfaceClientFactoryOzone() override {
+    return surface_client_.get();
+  }
+
+  void InitializeUI() override {
+    if (!surface_client_)
+      surface_client_.reset(new SurfaceClientFactoryOzone);
+  }
+
+  void InitializeRenderer() override {
+    if (!surface_client_)
+      surface_client_.reset(new SurfaceClientFactoryOzone);
+  }
+
+ private:
+  scoped_ptr<SurfaceClientFactoryOzone> surface_client_;
+
+  DISALLOW_COPY_AND_ASSIGN(OzoneClientTest);
+};
+
 }  // namespace
 
 OzonePlatform* CreateOzonePlatformTest() {
@@ -113,4 +141,8 @@ OzonePlatform* CreateOzonePlatformTest() {
   return new OzonePlatformTest(location);
 }
 
+OzoneClient* CreateOzoneClientTest() {
+  return new OzoneClientTest;
+}
+
 }  // namespace ui