Convert the flash clipboard API to thunk system.

ppapi/thunk/ppb_flash_clipboard_thunk.cc

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/c/private/ppb_flash_clipboard.h"
+#include "ppapi/thunk/enter.h"
+#include "ppapi/thunk/thunk.h"
+#include "ppapi/thunk/ppb_flash_clipboard_api.h"
+
+namespace ppapi {
+namespace thunk {
+
+namespace {
+
+typedef EnterFunction<PPB_Flash_Clipboard_FunctionAPI> EnterFlashClipboard;
+
+PP_Bool IsFormatAvailable(PP_Instance instance,
+                          PP_Flash_Clipboard_Type clipboard_type,
+                          PP_Flash_Clipboard_Format format) {
+  EnterFlashClipboard enter(instance, true);
+  if (enter.failed())
+    return PP_FALSE;
+  return enter.functions()->IsFormatAvailable(instance, clipboard_type, format);
+}
+
+PP_Var ReadPlainText(PP_Instance instance,
+                     PP_Flash_Clipboard_Type clipboard_type) {
+  EnterFlashClipboard enter(instance, true);
+  if (enter.failed())
+    return PP_MakeUndefined();
+  return enter.functions()->ReadPlainText(instance, clipboard_type);
+}
+
+int32_t WritePlainText(PP_Instance instance,
+                       PP_Flash_Clipboard_Type clipboard_type,
+                       PP_Var text) {
+  EnterFlashClipboard enter(instance, true);
+  if (enter.failed())
+    return PP_ERROR_NOINTERFACE;

[viettrungluu, 2011/10/20 23:41:01]

Is PP_ERROR_NOINTERFACE really correct here?

[brettw, 2011/10/21 20:09:03]

It seems as correct as "general error". The happens when interface is internally
not hooked up.

+  return enter.functions()->WritePlainText(instance, clipboard_type, text);
+}
+
+const PPB_Flash_Clipboard g_ppb_flash_clipboard_thunk = {
+  &IsFormatAvailable,
+  &ReadPlainText,
+  &WritePlainText
+};
+
+}  // namespace
+
+const PPB_Flash_Clipboard* GetPPB_Flash_Clipboard_Thunk() {
+  return &g_ppb_flash_clipboard_thunk;
+}
+
+}  // namespace thunk
+}  // namespace ppapi