Make IPC::Channel::Listener:OnMessageReceived have a return value indicating ...

ppapi/proxy/ppb_char_set_proxy.cc

 // Copyright (c) 2010 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/proxy/ppb_char_set_proxy.h"
 
 #include "ppapi/c/dev/ppb_char_set_dev.h"
 #include "ppapi/c/ppb_core.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
 #include "ppapi/proxy/ppapi_messages.h"
@@ skipping 70 matching lines @@
 }
 
 const void* PPB_CharSet_Proxy::GetSourceInterface() const {
   return &ppb_charset_interface;
 }
 
 InterfaceID PPB_CharSet_Proxy::GetInterfaceId() const {
   return INTERFACE_ID_PPB_CHAR_SET;
 }
 
-void PPB_CharSet_Proxy::OnMessageReceived(const IPC::Message& msg) {
+bool PPB_CharSet_Proxy::OnMessageReceived(const IPC::Message& msg) {
+  bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(PPB_CharSet_Proxy, msg)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBCharSet_UTF16ToCharSet,
                         OnMsgUTF16ToCharSet)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBCharSet_CharSetToUTF16,
                         OnMsgCharSetToUTF16)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBCharSet_GetDefaultCharSet,
                         OnMsgGetDefaultCharSet)
+    IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
+  return handled;
 }
 
 void PPB_CharSet_Proxy::OnMsgUTF16ToCharSet(const string16& utf16,
                                             const std::string& char_set,
                                             int32_t on_error,
                                             std::string* output,
                                             bool* output_is_success) {
   uint32_t output_len = 0;
   char* result = ppb_char_set_target()->UTF16ToCharSet(
       reinterpret_cast<const uint16_t*>(utf16.c_str()),
@@ skipping 38 matching lines @@
 const PPB_Core* PPB_CharSet_Proxy::GetCoreInterface() {
   if (!core_interface_) {
     core_interface_ = static_cast<const PPB_Core*>(
         dispatcher()->GetLocalInterface(PPB_CORE_INTERFACE));
   }
   return core_interface_;
 }
 
 }  // namespace proxy
 }  // namespace pp