Pepper: Add MonitorIsExternal function to PPB_Flash_DRM.

ppapi/cpp/private/flash_drm.cc

 // Copyright (c) 2012 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/cpp/private/flash_drm.h"
 
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/private/ppb_flash_device_id.h"
 #include "ppapi/c/private/ppb_flash_drm.h"
 #include "ppapi/cpp/module_impl.h"
 
 namespace pp {
 
 namespace {
 
 template <> const char* interface_name<PPB_Flash_DRM_1_0>() {

[yzshen1, 2013/11/19 23:22:59]

We should also have one for PPB_Flash_DRM_1_1?

Besides, shall we update all methods to check PPB_Flash_DRM_1_1 before falling
back to PPB_Flash_DRM_1_0? 

[bbudge, 2013/11/25 21:47:59]

Done. Good catch.

   return PPB_FLASH_DRM_INTERFACE_1_0;
 }
 
 template <> const char* interface_name<PPB_Flash_DeviceID_1_0>() {
   return PPB_FLASH_DEVICEID_INTERFACE_1_0;
 }
 
 }  // namespace
 
 namespace flash {
@@ skipping 40 matching lines @@
     const CompletionCallbackWithOutput<FileRef>& callback) {
   if (has_interface<PPB_Flash_DRM_1_0>()) {
     return get_interface<PPB_Flash_DRM_1_0>()->GetVoucherFile(
         pp_resource(),
         callback.output(),
         callback.pp_completion_callback());
   }
   return PP_ERROR_NOINTERFACE;
 }
 
+int32_t DRM::MonitorIsExternal(
+    const CompletionCallbackWithOutput<PP_Bool>& callback) {
+  if (has_interface<PPB_Flash_DRM_1_1>()) {
+    return get_interface<PPB_Flash_DRM_1_1>()->MonitorIsExternal(
+        pp_resource(),
+        callback.output(),
+        callback.pp_completion_callback());
+  }
+  return PP_ERROR_NOINTERFACE;
+}
+
 }  // namespace flash
 }  // namespace pp