Refactor Pickle Read methods to use higher performance PickleIterator.

content/common/indexed_db/indexed_db_param_traits.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 "content/common/indexed_db/indexed_db_param_traits.h"
 
 #include "content/common/indexed_db/indexed_db_key.h"
 #include "content/common/indexed_db/indexed_db_key_range.h"
 #include "content/public/common/serialized_script_value.h"
 #include "ipc/ipc_message_utils.h"
 
 namespace IPC {
 
 void ParamTraits<content::SerializedScriptValue>::Write(Message* m,
                                                         const param_type& p) {
   WriteParam(m, p.is_null());
   WriteParam(m, p.is_invalid());
   WriteParam(m, p.data());
 }
 
 bool ParamTraits<content::SerializedScriptValue>::Read(const Message* m,
-                                                       void** iter,
+                                                       PickleIterator* iter,
                                                        param_type* r) {
   bool is_null;
   bool is_invalid;
   string16 data;
   bool ok =
       ReadParam(m, iter, &is_null) &&
       ReadParam(m, iter, &is_invalid) &&
       ReadParam(m, iter, &data);
   if (!ok)
   return false;
@@ skipping 30 matching lines @@
       WriteParam(m, p.number());
       return;
     case WebKit::WebIDBKey::InvalidType:
     case WebKit::WebIDBKey::NullType:
       return;
   }
   NOTREACHED();
 }
 
 bool ParamTraits<IndexedDBKey>::Read(const Message* m,
-                                     void** iter,
+                                     PickleIterator* iter,
                                      param_type* r) {
   int type;
   if (!ReadParam(m, iter, &type))
     return false;
 
   switch (type) {
     case WebKit::WebIDBKey::ArrayType:
       {
         std::vector<IndexedDBKey> array;
         if (!ReadParam(m, iter, &array))
@@ skipping 58 matching lines @@
 }
 
 void ParamTraits<IndexedDBKeyRange>::Write(Message* m, const param_type& p) {
   WriteParam(m, p.lower());
   WriteParam(m, p.upper());
   WriteParam(m, p.lowerOpen());
   WriteParam(m, p.upperOpen());
 }
 
 bool ParamTraits<IndexedDBKeyRange>::Read(const Message* m,
-                                          void** iter,
+                                          PickleIterator* iter,
                                           param_type* r) {
 
   IndexedDBKey lower;
   if (!ReadParam(m, iter, &lower))
     return false;
 
   IndexedDBKey upper;
   if (!ReadParam(m, iter, &upper))
     return false;
 
@@ skipping 15 matching lines @@
   l->append(", upper=");
   LogParam(p.upper(), l);
   l->append(", lower_open=");
   LogParam(p.lowerOpen(), l);
   l->append(", upper_open=");
   LogParam(p.upperOpen(), l);
   l->append(")");
 }
 
 }  // namespace IPC