Add a new GetInstance() method for singleton classes, take 2.

chrome/renderer/extensions/bindings_utils.cc

 // Copyright (c) 2010 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/renderer/extensions/bindings_utils.h"
 
 #include "base/string_split.h"
 #include "base/string_util.h"
 #include "chrome/renderer/render_view.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebFrame.h"
 
 using WebKit::WebFrame;
 using WebKit::WebView;
 
 namespace bindings_utils {
 
 const char* kChromeHidden = "chromeHidden";
 const char* kValidateCallbacks = "validateCallbacks";
 
 struct SingletonData {
   ContextList contexts;
   PendingRequestMap pending_requests;
 };
 
+typedef std::map<int, std::string> StringMap;
+
+const char* GetStringResource(int resource_id) {
+  StringMap* strings = Singleton<StringMap>::get();
+  StringMap::iterator it = strings->find(resource_id);
+  if (it == strings->end()) {
+    it = strings->insert(std::make_pair(
+        resource_id,
+        ResourceBundle::GetSharedInstance().GetRawDataResource(
+            resource_id).as_string())).first;
+  }
+  return it->second.c_str();
+}
+
 // ExtensionBase
 
 v8::Handle<v8::FunctionTemplate>
     ExtensionBase::GetNativeFunction(v8::Handle<v8::String> name) {
   if (name->Equals(v8::String::New("GetChromeHidden"))) {
     return v8::FunctionTemplate::New(GetChromeHidden);
   }
 
   return v8::Handle<v8::FunctionTemplate>();
 }
@@ skipping 124 matching lines @@
   }
 
   v8::Local<v8::Function> function = v8::Local<v8::Function>::Cast(value);
   if (!function.IsEmpty())
     return function->Call(v8::Object::New(), argc, argv);
 
   return v8::Undefined();
 }
 
 }  // namespace bindings_utils