Add a mimeHandler extension API.

extensions/renderer/dispatcher.cc

 // 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.
 
 #include "extensions/renderer/dispatcher.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/debug/alias.h"
@@ skipping 591 matching lines @@
       std::make_pair("app.window", IDR_APP_WINDOW_CUSTOM_BINDINGS_JS));
   resources.push_back(
       std::make_pair("declarativeWebRequest",
                      IDR_DECLARATIVE_WEBREQUEST_CUSTOM_BINDINGS_JS));
   resources.push_back(
       std::make_pair("contextMenus", IDR_CONTEXT_MENUS_CUSTOM_BINDINGS_JS));
   resources.push_back(
       std::make_pair("extension", IDR_EXTENSION_CUSTOM_BINDINGS_JS));
   resources.push_back(std::make_pair("i18n", IDR_I18N_CUSTOM_BINDINGS_JS));
   resources.push_back(
+      std::make_pair("mimeHandler", IDR_MIME_HANDLER_CUSTOM_BINDINGS_JS));
+  resources.push_back(std::make_pair("extensions/common/api/mime_handler.mojom",
+                                     IDR_MIME_HANDLER_MOJOM_JS));
+  resources.push_back(
       std::make_pair("permissions", IDR_PERMISSIONS_CUSTOM_BINDINGS_JS));
   resources.push_back(
       std::make_pair("runtime", IDR_RUNTIME_CUSTOM_BINDINGS_JS));
   resources.push_back(std::make_pair("windowControls", IDR_WINDOW_CONTROLS_JS));
   resources.push_back(
       std::make_pair("webViewRequest",
                      IDR_WEB_VIEW_REQUEST_CUSTOM_BINDINGS_JS));
   resources.push_back(std::make_pair("binding", IDR_BINDING_JS));
 
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
@@ skipping 795 matching lines @@
     return v8::Handle<v8::Object>();
 
   if (bind_name)
     *bind_name = split.back();
 
   return bind_object.IsEmpty() ? AsObjectOrEmpty(GetOrCreateChrome(context))
                                : bind_object;
 }
 
 }  // namespace extensions