Move extensions bindings code out of //chrome

chrome/renderer/extensions/render_view_observer_natives.cc

-// Copyright 2013 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/render_view_observer_natives.h"
-
-#include "chrome/renderer/extensions/dispatcher.h"
-#include "content/public/renderer/render_view.h"
-#include "content/public/renderer/render_view_observer.h"
-#include "extensions/common/extension_api.h"
-#include "extensions/renderer/script_context.h"
-#include "third_party/WebKit/public/web/WebFrame.h"
-#include "third_party/WebKit/public/web/WebScopedMicrotaskSuppression.h"
-
-namespace extensions {
-
-namespace {
-
-// Deletes itself when done.
-class LoadWatcher : public content::RenderViewObserver {
- public:
-  LoadWatcher(ScriptContext* context,
-              content::RenderView* view,
-              v8::Handle<v8::Function> cb)
-      : content::RenderViewObserver(view), context_(context), callback_(cb) {}
-
-  virtual void DidCreateDocumentElement(blink::WebLocalFrame* frame) OVERRIDE {
-    CallbackAndDie(true);
-  }
-
-  virtual void DidFailProvisionalLoad(
-      blink::WebLocalFrame* frame,
-      const blink::WebURLError& error) OVERRIDE {
-    CallbackAndDie(false);
-  }
-
- private:
-  void CallbackAndDie(bool succeeded) {
-    v8::Isolate* isolate = context_->isolate();
-    v8::HandleScope handle_scope(isolate);
-    v8::Handle<v8::Value> args[] = { v8::Boolean::New(isolate, succeeded) };
-    context_->CallFunction(callback_.NewHandle(isolate), 1, args);
-    delete this;
-  }
-
-  ScriptContext* context_;
-  ScopedPersistent<v8::Function> callback_;
-  DISALLOW_COPY_AND_ASSIGN(LoadWatcher);
-};
-}  // namespace
-
-
-RenderViewObserverNatives::RenderViewObserverNatives(Dispatcher* dispatcher,
-                                                     ChromeV8Context* context)
-    : ChromeV8Extension(dispatcher, context) {
-  RouteFunction("OnDocumentElementCreated",
-                base::Bind(&RenderViewObserverNatives::OnDocumentElementCreated,
-                           base::Unretained(this)));
-}
-
-void RenderViewObserverNatives::OnDocumentElementCreated(
-    const v8::FunctionCallbackInfo<v8::Value>& args) {
-  CHECK(args.Length() == 2);
-  CHECK(args[0]->IsInt32());
-  CHECK(args[1]->IsFunction());
-
-  int view_id = args[0]->Int32Value();
-
-  content::RenderView* view = content::RenderView::FromRoutingID(view_id);
-  if (!view) {
-    LOG(WARNING) << "No render view found to register LoadWatcher.";
-    return;
-  }
-
-  new LoadWatcher(context(), view, args[1].As<v8::Function>());
-
-  args.GetReturnValue().Set(true);
-}
-
-}  // namespace extensions