Replace Handle<> with Local in remaining gin/*

gin/per_context_data.h

 // 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.
 
 #ifndef GIN_PER_CONTEXT_DATA_H_
 #define GIN_PER_CONTEXT_DATA_H_
 
 #include "base/basictypes.h"
 #include "base/supports_user_data.h"
 #include "gin/gin_export.h"
 #include "v8/include/v8.h"
 
 namespace gin {
 
 class ContextHolder;
 class Runner;
 
 // There is one instance of PerContextData per v8::Context managed by Gin. This
 // class stores all the Gin-related data that varies per context. Arbitrary data
 // can be associated with this class by way of the SupportsUserData methods.
 // Instances of this class (and any associated user data) are destroyed before
 // the associated v8::Context.
 class GIN_EXPORT PerContextData : public base::SupportsUserData {
  public:
   PerContextData(ContextHolder* context_holder,
-                 v8::Handle<v8::Context> context);
+                 v8::Local<v8::Context> context);
   ~PerContextData() override;
 
   // Can return NULL after the ContextHolder has detached from context.
-  static PerContextData* From(v8::Handle<v8::Context> context);
+  static PerContextData* From(v8::Local<v8::Context> context);
 
   // The Runner associated with this context. To execute script in this context,
   // please use the appropriate API on Runner.
   Runner* runner() const { return runner_; }
   void set_runner(Runner* runner) { runner_ = runner; }
 
   ContextHolder* context_holder() { return context_holder_; }
 
  private:
   ContextHolder* context_holder_;
   Runner* runner_;
 
   DISALLOW_COPY_AND_ASSIGN(PerContextData);
 };
 
 }  // namespace gin
 
 #endif  // GIN_PER_CONTEXT_DATA_H_