Replacing WebUIBindings use of CPPBoundClass with v8::Extension.

content/renderer/web_ui_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 "content/renderer/web_ui_bindings.h"
-
-#include "base/bind.h"
-#include "base/bind_helpers.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/stl_util.h"
-#include "base/values.h"
-#include "content/common/view_messages.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebURL.h"
-
-using webkit_glue::CppArgumentList;
-using webkit_glue::CppVariant;
-
-namespace {
-
-// Creates a Value which is a copy of the CppVariant |value|. All objects are
-// treated as Lists for now since CppVariant does not distinguish arrays in any
-// convenient way and we currently have no need of non array objects.
-Value* CreateValueFromCppVariant(const CppVariant& value) {
-  if (value.isBool())
-    return Value::CreateBooleanValue(value.ToBoolean());
-  if (value.isDouble())
-    return Value::CreateDoubleValue(value.ToDouble());
-  if (value.isInt32())
-    return Value::CreateIntegerValue(value.ToInt32());
-  if (value.isString())
-    return Value::CreateStringValue(value.ToString());
-
-  if (value.isObject()) {
-    // We currently assume all objects are arrays.
-    std::vector<CppVariant> vector = value.ToVector();
-    ListValue* list = new ListValue();
-    for (size_t i = 0; i < vector.size(); ++i) {
-      list->Append(CreateValueFromCppVariant(vector[i]));
-    }
-    return list;
-  }
-
-  // Covers null and undefined.
-  return Value::CreateNullValue();
-}
-
-}  // namespace
-
-DOMBoundBrowserObject::DOMBoundBrowserObject() {
-}
-
-DOMBoundBrowserObject::~DOMBoundBrowserObject() {
-  STLDeleteContainerPointers(properties_.begin(), properties_.end());
-}
-
-WebUIBindings::WebUIBindings(IPC::Sender* sender, int routing_id)
-    : sender_(sender), routing_id_(routing_id) {
-  BindCallback("send", base::Bind(&WebUIBindings::Send,
-                                  base::Unretained(this)));
-}
-
-WebUIBindings::~WebUIBindings() {}
-
-void WebUIBindings::Send(const CppArgumentList& args, CppVariant* result) {
-  // We expect at least a string message identifier, and optionally take
-  // an object parameter.  If we get anything else we bail.
-  if (args.size() < 1 || args.size() > 2)
-    return;
-
-  // Require the first parameter to be the message name.
-  if (!args[0].isString())
-    return;
-  const std::string message = args[0].ToString();
-
-  // If they've provided an optional message parameter, convert that into a
-  // Value to send to the browser process.
-  scoped_ptr<Value> content;
-  if (args.size() == 2) {
-    if (!args[1].isObject())
-      return;
-
-    content.reset(CreateValueFromCppVariant(args[1]));
-    CHECK(content->IsType(Value::TYPE_LIST));
-  } else {
-    content.reset(new ListValue());
-  }
-
-  // Retrieve the source document's url
-  GURL source_url;
-  WebKit::WebFrame* frame = WebKit::WebFrame::frameForCurrentContext();
-  if (frame)
-    source_url = frame->document().url();
-
-  // Send the message up to the browser.
-  sender_->Send(new ViewHostMsg_WebUISend(
-      routing_id_,
-      source_url,
-      message,
-      *(static_cast<ListValue*>(content.get()))));
-}
-
-void DOMBoundBrowserObject::SetProperty(const std::string& name,
-                                        const std::string& value) {
-  CppVariant* cpp_value = new CppVariant;
-  cpp_value->Set(value);
-  BindProperty(name, cpp_value);
-  properties_.push_back(cpp_value);
-}