Add more of the server-side plumbing for extension APIs. Also

chrome/browser/extensions/extension_api_handler.cc

-// Copyright (c) 2009 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/browser/extensions/extension_api_handler.h"
-
-#include "base/json_reader.h"
-#include "base/json_writer.h"
-#include "base/values.h"
-#include "chrome/browser/browser.h"
-#include "chrome/browser/browser_list.h"
-#include "chrome/browser/renderer_host/render_view_host.h"
-
-ExtensionAPIHandler::ExtensionAPIHandler(RenderViewHost* render_view_host)
-  : render_view_host_(render_view_host) {}
-
-void ExtensionAPIHandler::HandleRequest(const std::string& name,
-                                        const std::string& args,
-                                        int callback_id) {
-  scoped_ptr<Value> value;
-  if (!args.empty()) {
-    value.reset(JSONReader::Read(args, false));
-    DCHECK(value.get());
-  }
-
-  // TODO(aa): This will probably dispatch to per-module specialized classes.
-  // Consider refactoring similar work in dom_ui to reuse.
-  if (name == "CreateTab") {
-    Browser* browser = BrowserList::GetLastActive();
-    if (browser) {
-      DCHECK(value->IsType(Value::TYPE_DICTIONARY));
-      std::string url;
-      static_cast<DictionaryValue*>(value.get())->GetString(L"url", &url);
-      browser->AddTabWithURL(GURL(url), GURL(), PageTransition::TYPED, true,
-                             NULL);
-
-      static int response_count = 0;
-      scoped_ptr<Value> response(Value::CreateIntegerValue(response_count++));
-      std::string json;
-      JSONWriter::Write(response.get(), false, &json);
-
-      render_view_host_->SendExtensionResponse(callback_id, json);
-    }
-  }
-}