Use WebKit compositor in ui::Layer

ui/aura_shell/examples/aura_shell_main.cc

Index: ui/aura_shell/examples/aura_shell_main.cc
diff --git a/ui/aura_shell/examples/aura_shell_main.cc b/ui/aura_shell/examples/aura_shell_main.cc
index 486554b3f4d42e97ee02d61e621b6fd300e49400..5330c21a0c68b21220977f4fc4a80fcf2bb8b8cd 100644
--- a/ui/aura_shell/examples/aura_shell_main.cc
+++ b/ui/aura_shell/examples/aura_shell_main.cc
@@ -7,6 +7,7 @@
 #include "base/i18n/icu_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebKit.h"
 #include "ui/aura/desktop.h"
 #include "ui/aura_shell/examples/toplevel_window.h"
 #include "ui/aura_shell/launcher/launcher_types.h"
@@ -15,6 +16,7 @@
 #include "ui/aura_shell/shell_factory.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/ui_base_paths.h"
+#include "webkit/glue/webkitplatformsupport_impl.h"
 
 namespace {
 
@@ -70,6 +72,9 @@ int main(int argc, char** argv) {
   // Create the message-loop here before creating the desktop.
   MessageLoop message_loop(MessageLoop::TYPE_UI);
 
+  webkit_glue::WebKitPlatformSupportImpl platform_support;
+  WebKit::initialize(&platform_support);
+
   aura_shell::Shell::GetInstance()->SetDelegate(new ShellDelegateImpl);;
 
   aura_shell::examples::InitWindowTypeLauncher();
@@ -78,6 +83,8 @@ int main(int argc, char** argv) {
 
   delete aura::Desktop::GetInstance();
 
+  WebKit::shutdown();
+
   return 0;
 }