Use Local instead of Handle in src/content/*

content/renderer/web_ui_runner.h

 // Copyright 2014 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.
 
 #ifndef CONTENT_RENDERER_WEB_UI_RUNNER_H_
 #define CONTENT_RENDERER_WEB_UI_RUNNER_H_
 
 #include "gin/runner.h"
 
 namespace blink {
 class WebFrame;
 }
 
 namespace content {
 
 // Implementation of gin::Runner that forwards Runner functions to WebFrame.
 class WebUIRunner : public gin::Runner {
  public:
   // Does not take ownership of ContextHolder.
   WebUIRunner(blink::WebFrame* frame, gin::ContextHolder* context_holder);
   ~WebUIRunner() override;
 
   // Runner overrides:
   void Run(const std::string& source,
            const std::string& resource_name) override;
-  v8::Handle<v8::Value> Call(v8::Handle<v8::Function> function,
-                             v8::Handle<v8::Value> receiver,
+  v8::Local<v8::Value> Call(v8::Local<v8::Function> function,
+                             v8::Local<v8::Value> receiver,
                              int argc,
-                             v8::Handle<v8::Value> argv[]) override;
+                             v8::Local<v8::Value> argv[]) override;
   gin::ContextHolder* GetContextHolder() override;
 
  private:
   // Frame to execute script in.
   blink::WebFrame* frame_;
 
   // Created by blink bindings to V8.
   gin::ContextHolder* context_holder_;
 
   DISALLOW_COPY_AND_ASSIGN(WebUIRunner);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_WEB_UI_RUNNER_H_