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

chrome/browser/extensions/image_loader_unittest.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/extensions/image_loader.h"
 
 #include "base/json/json_file_value_serializer.h"
 #include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ skipping 55 matching lines @@
     base::FilePath test_file;
     if (!PathService::Get(chrome::DIR_TEST_DATA, &test_file)) {
       EXPECT_FALSE(true);
       return NULL;
     }
     test_file = test_file.AppendASCII("extensions")
                          .AppendASCII(name);
     int error_code = 0;
     std::string error;
     JSONFileValueSerializer serializer(test_file.AppendASCII("app.json"));
-    scoped_ptr<DictionaryValue> valid_value(
-        static_cast<DictionaryValue*>(serializer.Deserialize(&error_code,
-                                                             &error)));
+    scoped_ptr<base::DictionaryValue> valid_value(
+        static_cast<base::DictionaryValue*>(serializer.Deserialize(&error_code,
+                                                                   &error)));
     EXPECT_EQ(0, error_code) << error;
     if (error_code != 0)
       return NULL;
 
     EXPECT_TRUE(valid_value.get());
     if (!valid_value)
       return NULL;
 
     if (location == Manifest::COMPONENT) {
       if (!PathService::Get(chrome::DIR_RESOURCES, &test_file)) {
@@ skipping 163 matching lines @@
 
 #if defined(FILE_MANAGER_EXTENSION)
   int resource_id;
   ASSERT_EQ(true,
             ImageLoader::IsComponentExtensionResource(extension->path(),
                                                       resource.relative_path(),
                                                       &resource_id));
   ASSERT_EQ(IDR_FILE_MANAGER_ICON_16, resource_id);
 #endif
 }