Lazy load chrome.* APIs

chrome/renderer/extensions/page_capture_custom_bindings.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/renderer/extensions/page_capture_custom_bindings.h"
 
 #include "base/utf_string_conversions.h"
 #include "chrome/common/extensions/extension_messages.h"
 #include "content/public/renderer/render_view.h"
 #include "grit/renderer_resources.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebBlob.h"
 #include "v8/include/v8.h"
 
 namespace extensions {
 
-PageCaptureCustomBindings::PageCaptureCustomBindings()
-    : ChromeV8Extension(NULL) {
+PageCaptureCustomBindings::PageCaptureCustomBindings(
+    Dispatcher* dispatcher,
+    v8::Handle<v8::Context> context)
+    : ChromeV8Extension(dispatcher, context) {
   RouteStaticFunction("CreateBlob", &CreateBlob);
   RouteStaticFunction("SendResponseAck", &SendResponseAck);
 }
 
 // static
 v8::Handle<v8::Value> PageCaptureCustomBindings::CreateBlob(
     const v8::Arguments& args) {
   CHECK(args.Length() == 2);
   CHECK(args[0]->IsString());
   CHECK(args[1]->IsInt32());
   WebKit::WebString path(UTF8ToUTF16(*v8::String::Utf8Value(args[0])));
   WebKit::WebBlob blob =
       WebKit::WebBlob::createFromFile(path, args[1]->Int32Value());
   return blob.toV8Value();
 }
 
 // static
 v8::Handle<v8::Value> PageCaptureCustomBindings::SendResponseAck(
     const v8::Arguments& args) {
   CHECK(args.Length() == 1);
   CHECK(args[0]->IsInt32());
 
-  content::RenderView* render_view = GetCurrentRenderView();
+  PageCaptureCustomBindings* self =
+      GetFromArguments<PageCaptureCustomBindings>(args);
+  content::RenderView* render_view = self->GetRenderView();
   if (render_view) {
     render_view->Send(new ExtensionHostMsg_ResponseAck(
         render_view->GetRoutingID(), args[0]->Int32Value()));
   }
   return v8::Undefined();
 }
 
 }  // namespace extensions