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

content/renderer/render_thread_impl.cc

Index: content/renderer/render_thread_impl.cc
diff --git a/content/renderer/render_thread_impl.cc b/content/renderer/render_thread_impl.cc
index bb9e409d7024de96fb77b1aafc2828dc972909d6..8bb5fda1095796ee53c37173f2f5b19d110a6855 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -154,6 +154,10 @@
 #include "content/renderer/webscrollbarbehavior_impl_mac.h"
 #endif
 
+#if defined(USE_OZONE)
+#include "ui/ozone/public/ozone_client.h"
+#endif
+
 #if defined(OS_POSIX)
 #include "ipc/ipc_channel_posix.h"
 #endif
@@ -592,6 +596,10 @@ void RenderThreadImpl::Init() {
   is_elastic_overscroll_enabled_ = false;
 #endif
 
+#if defined(USE_OZONE)
+  ui::OzoneClient::InitializeForRenderer();
+#endif
+
   std::string image_texture_target_string =
       command_line.GetSwitchValueASCII(switches::kUseImageTextureTarget);
   bool parsed_image_texture_target = base::StringToUint(