Update some uses of Value in chrome/browser to use the base:: namespace.

chrome/browser/performance_monitor/database.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 "chrome/browser/performance_monitor/database.h"
 
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
@@ skipping 39 matching lines @@
 double StringToDouble(const std::string& s) {
   double value = 0.0;
   if (!base::StringToDouble(s, &value))
     LOG(ERROR) << "Failed to convert " << s << " to double.";
   return value;
 }
 
 // Returns an event from the given JSON string; the scoped_ptr will be NULL if
 // we are unable to properly parse the JSON.
 scoped_ptr<Event> EventFromJSON(const std::string& data) {
-  Value* value = base::JSONReader::Read(data);
-  DictionaryValue* dict = NULL;
+  base::Value* value = base::JSONReader::Read(data);
+  base::DictionaryValue* dict = NULL;
   if (!value || !value->GetAsDictionary(&dict))
     return scoped_ptr<Event>();
 
-  return Event::FromValue(scoped_ptr<DictionaryValue>(dict));
+  return Event::FromValue(scoped_ptr<base::DictionaryValue>(dict));
 }
 
 }  // namespace
 
 const char Database::kDatabaseSequenceToken[] =
     "_performance_monitor_db_sequence_token_";
 
 TimeRange::TimeRange() {
 }
 
@@ skipping 505 matching lines @@
     start_time_key_ = key_builder_->CreateActiveIntervalKey(current_time);
     end_time = start_time_key_;
   } else {
     end_time = key_builder_->CreateActiveIntervalKey(clock_->GetTime());
   }
   last_update_time_ = current_time;
   active_interval_db_->Put(write_options_, start_time_key_, end_time);
 }
 
 }  // namespace performance_monitor