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

chrome/browser/extensions/user_script_listener_unittest.cc

Index: chrome/browser/extensions/user_script_listener_unittest.cc
diff --git a/chrome/browser/extensions/user_script_listener_unittest.cc b/chrome/browser/extensions/user_script_listener_unittest.cc
index 0e530d444bfb876ed1a41b9d7617d0c173efa521..34c31f4fe27a9b65edd13e05144fa3f1e0639c6b 100644
--- a/chrome/browser/extensions/user_script_listener_unittest.cc
+++ b/chrome/browser/extensions/user_script_listener_unittest.cc
@@ -78,11 +78,12 @@ class SimpleTestJob : public net::URLRequestTestJob {
 };
 
 // Yoinked from extension_manifest_unittest.cc.
-DictionaryValue* LoadManifestFile(const base::FilePath path,
-                                  std::string* error) {
+base::DictionaryValue* LoadManifestFile(const base::FilePath path,
+                                        std::string* error) {
   EXPECT_TRUE(base::PathExists(path));
   JSONFileValueSerializer serializer(path);
-  return static_cast<DictionaryValue*>(serializer.Deserialize(NULL, error));
+  return static_cast<base::DictionaryValue*>(
+      serializer.Deserialize(NULL, error));
 }
 
 scoped_refptr<Extension> LoadExtension(const std::string& filename,
@@ -93,7 +94,7 @@ scoped_refptr<Extension> LoadExtension(const std::string& filename,
       AppendASCII("extensions").
       AppendASCII("manifest_tests").
       AppendASCII(filename.c_str());
-  scoped_ptr<DictionaryValue> value(LoadManifestFile(path, error));
+  scoped_ptr<base::DictionaryValue> value(LoadManifestFile(path, error));
   if (!value)
     return NULL;
   return Extension::Create(path.DirName(), Manifest::UNPACKED, *value,