Move flash clipboard to the new proxy and add custom format support

ppapi/proxy/ppb_instance_proxy.cc

Index: ppapi/proxy/ppb_instance_proxy.cc
diff --git a/ppapi/proxy/ppb_instance_proxy.cc b/ppapi/proxy/ppb_instance_proxy.cc
index 5f10cf8ba2a6ab285411afb7a1b17c47c87c736f..836117fb726e9ff569821b2fb57e6042828778b2 100644
--- a/ppapi/proxy/ppb_instance_proxy.cc
+++ b/ppapi/proxy/ppb_instance_proxy.cc
@@ -15,6 +15,7 @@
 #include "ppapi/c/private/pp_content_decryptor.h"
 #include "ppapi/proxy/content_decryptor_private_serializer.h"
 #include "ppapi/proxy/enter_proxy.h"
+#include "ppapi/proxy/flash_clipboard_resource.h"
 #include "ppapi/proxy/flash_resource.h"
 #include "ppapi/proxy/gamepad_resource.h"
 #include "ppapi/proxy/host_dispatcher.h"
@@ -321,6 +322,8 @@ thunk::PPB_Flash_API* PPB_Instance_Proxy::GetFlashAPI() {
   return static_cast<PPB_Flash_Proxy*>(ip);
 }
 
+// TODO(raymes): We can most likely cut down this boilerplate for grabbing
+// singleton resource APIs.
 thunk::PPB_Flash_Functions_API* PPB_Instance_Proxy::GetFlashFunctionsAPI(
     PP_Instance instance) {
 #if !defined(OS_NACL) && !defined(NACL_WIN64)
@@ -343,6 +346,29 @@ thunk::PPB_Flash_Functions_API* PPB_Instance_Proxy::GetFlashFunctionsAPI(
 #endif  // !defined(OS_NACL) && !defined(NACL_WIN64)
 }
 
+thunk::PPB_Flash_Clipboard_API* PPB_Instance_Proxy::GetFlashClipboardAPI(
+    PP_Instance instance) {
+#if !defined(OS_NACL) && !defined(NACL_WIN64)
+  InstanceData* data = static_cast<PluginDispatcher*>(dispatcher())->
+      GetInstanceData(instance);
+  if (!data)
+    return NULL;
+
+  if (!data->flash_clipboard_resource.get()) {
+    Connection connection(
+        PluginGlobals::Get()->plugin_proxy_delegate()->GetBrowserSender(),
+        dispatcher());
+    data->flash_clipboard_resource =
+        new FlashClipboardResource(connection, instance);
+  }
+  return data->flash_clipboard_resource.get();
+#else
+  // Flash functions aren't implemented for nacl.
+  NOTIMPLEMENTED();
+  return NULL;
+#endif  // !defined(OS_NACL) && !defined(NACL_WIN64)
+}
+
 thunk::PPB_Gamepad_API* PPB_Instance_Proxy::GetGamepadAPI(
     PP_Instance instance) {
   InstanceData* data = static_cast<PluginDispatcher*>(dispatcher())->