Refactor Pickle Read methods to use higher performance PickleIterator.

chrome/common/render_messages.h

 // 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.
 
 // Multiply-included file, no traditional include guard.
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
@@ skipping 67 matching lines @@
 // HWNDS (NativeView), and making Windows calls based on them. I've not figured
 // out the deal with plugins yet.
 // TODO(android): a gfx::NativeView is the same as a gfx::NativeWindow.
 template <>
 struct ParamTraits<gfx::NativeView> {
   typedef gfx::NativeView param_type;
   static void Write(Message* m, const param_type& p) {
     NOTIMPLEMENTED();
   }
 
-  static bool Read(const Message* m, void** iter, param_type* p) {
+  static bool Read(const Message* m, PickleIterator* iter, param_type* p) {
     NOTIMPLEMENTED();
     *p = NULL;
     return true;
   }
 
   static void Log(const param_type& p, std::string* l) {
     l->append(base::StringPrintf("<gfx::NativeView>"));
   }
 };
 
 #endif  // defined(OS_POSIX) && !defined(USE_AURA) && !defined(OS_ANDROID)
 
 template <>
 struct ParamTraits<ContentSettingsPattern> {
   typedef ContentSettingsPattern param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, void** iter, param_type* r);
+  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 }  // namespace IPC
 
 #endif  // CHROME_COMMON_RENDER_MESSAGES_H_
 
 #define IPC_MESSAGE_START ChromeMsgStart
 
 IPC_ENUM_TRAITS(ChromeViewHostMsg_GetPluginInfo_Status::Value)
@@ skipping 513 matching lines @@
 // previous SetCookie message to be processed.
 IPC_SYNC_MESSAGE_ROUTED2_1(ChromeViewHostMsg_GetCookies,
                            GURL /* url */,
                            GURL /* first_party_for_cookies */,
                            std::string /* cookies */)
 
 // Provide the browser process with current renderer framerate.
 IPC_MESSAGE_CONTROL2(ChromeViewHostMsg_FPS,
                      int /* routing id */,
                      float /* frames per second */)