[Android] Implement renderer side of Gin Java Bridge

content/renderer/java/gin_java_bridge_value_converter.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_JAVA_GIN_JAVA_BRIDGE_VALUE_CONVERTER_H_
+#define CONTENT_RENDERER_JAVA_GIN_JAVA_BRIDGE_VALUE_CONVERTER_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "content/common/content_export.h"
+#include "content/public/renderer/v8_value_converter.h"
+
+namespace content {
+
+class GinJavaBridgeValueConverter : public content::V8ValueConverter::Strategy {
+ public:
+  CONTENT_EXPORT GinJavaBridgeValueConverter();
+  CONTENT_EXPORT virtual ~GinJavaBridgeValueConverter();
+
+  CONTENT_EXPORT v8::Handle<v8::Value> ToV8Value(
+      const base::Value* value,
+      v8::Handle<v8::Context> context) const;
+  CONTENT_EXPORT scoped_ptr<base::Value> FromV8Value(
+      v8::Handle<v8::Value> value,
+      v8::Handle<v8::Context> context) const;
+
+  // content::V8ValueConverter::Strategy
+  virtual bool FromV8Object(v8::Handle<v8::Object> value,
+                            base::Value** out,
+                            v8::Isolate* isolate,
+                            const FromV8ValueCallback& callback) const OVERRIDE;
+  virtual bool FromV8ArrayBuffer(v8::Handle<v8::Object> value,
+                                 base::Value** out,
+                                 v8::Isolate* isolate) const OVERRIDE;
+  virtual bool FromV8Number(v8::Handle<v8::Number> value,
+                            base::Value** out) const OVERRIDE;
+  virtual bool FromV8Undefined(base::Value** out) const OVERRIDE;
+
+ private:
+  scoped_ptr<V8ValueConverter> converter_;
+
+  DISALLOW_COPY_AND_ASSIGN(GinJavaBridgeValueConverter);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_JAVA_GIN_JAVA_BRIDGE_VALUE_CONVERTER_H_