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

ui/ozone/platform/drm/ozone_platform_drm.cc

Index: ui/ozone/platform/drm/ozone_platform_drm.cc
diff --git a/ui/ozone/platform/drm/ozone_platform_drm.cc b/ui/ozone/platform/drm/ozone_platform_drm.cc
index fb22bdcbbd466613b26409e2db346acac6611814..0006b71a3f4ac6223eb08a8d97623e7a48696bc2 100644
--- a/ui/ozone/platform/drm/ozone_platform_drm.cc
+++ b/ui/ozone/platform/drm/ozone_platform_drm.cc
@@ -27,8 +27,10 @@
 #include "ui/ozone/platform/drm/host/drm_native_display_delegate.h"
 #include "ui/ozone/platform/drm/host/drm_window_host.h"
 #include "ui/ozone/platform/drm/host/drm_window_host_manager.h"
+#include "ui/ozone/public/ozone_client.h"
 #include "ui/ozone/public/ozone_gpu_test_helper.h"
 #include "ui/ozone/public/ozone_platform.h"
+#include "ui/ozone/public/surface_client_factory_ozone.h"
 
 #if defined(USE_XKBCOMMON)
 #include "ui/events/ozone/layout/xkb/xkb_evdev_codes.h"
@@ -147,6 +149,32 @@ class OzonePlatformDrm : public OzonePlatform {
   DISALLOW_COPY_AND_ASSIGN(OzonePlatformDrm);
 };
 
+class OzoneClientDrm : public OzoneClient {
+ public:
+  OzoneClientDrm() {}
+  ~OzoneClientDrm() 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(OzoneClientDrm);
+};
+
 }  // namespace
 
 OzonePlatform* CreateOzonePlatformDri() {
@@ -157,4 +185,12 @@ OzonePlatform* CreateOzonePlatformDrm() {
   return new OzonePlatformDrm;
 }
 
+OzoneClient* CreateOzoneClientDri() {
+  return new OzoneClientDrm;
+}
+
+OzoneClient* CreateOzoneClientDrm() {
+  return new OzoneClientDrm;
+}
+
 }  // namespace ui