Introduce WebViewPermissionHelperDelegate.

chrome/browser/guest_view/web_view/chrome_web_view_permission_helper_delegate.cc

Index: chrome/browser/guest_view/web_view/chrome_web_view_permission_helper_delegate.cc
diff --git a/chrome/browser/guest_view/web_view/chrome_web_view_permission_helper_delegate.cc b/chrome/browser/guest_view/web_view/chrome_web_view_permission_helper_delegate.cc
new file mode 100644
index 0000000000000000000000000000000000000000..8ec076ba845949770b932bfc58b7620329154467
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+++ b/chrome/browser/guest_view/web_view/chrome_web_view_permission_helper_delegate.cc
@@ -0,0 +1,374 @@
+// 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 "chrome/browser/guest_view/web_view/chrome_web_view_permission_helper_delegate.h"
+
+#include "chrome/browser/content_settings/tab_specific_content_settings.h"
+#include "chrome/browser/geolocation/geolocation_permission_context.h"
+#include "chrome/browser/geolocation/geolocation_permission_context_factory.h"
+#include "chrome/browser/guest_view/web_view/web_view_constants.h"
+#include "chrome/browser/guest_view/web_view/web_view_guest.h"
+#include "chrome/browser/plugins/chrome_plugin_service_filter.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/common/render_messages.h"
+#include "content/public/browser/user_metrics.h"
+
+ChromeWebViewPermissionHelperDelegate::ChromeWebViewPermissionHelperDelegate(
+    extensions::WebViewPermissionHelper* web_view_permission_helper)
+    : WebViewPermissionHelperDelegate(
+        web_view_permission_helper->web_view_guest()->guest_web_contents()),
+      web_view_permission_helper_(web_view_permission_helper),
+      weak_factory_(this) {
+}
+
+ChromeWebViewPermissionHelperDelegate::~ChromeWebViewPermissionHelperDelegate()
+{}
+
+#if defined(ENABLE_PLUGINS)
+bool ChromeWebViewPermissionHelperDelegate::OnMessageReceived(
+    const IPC::Message& message,
+    content::RenderFrameHost* render_frame_host) {
+  IPC_BEGIN_MESSAGE_MAP(ChromeWebViewPermissionHelperDelegate, message)
+    IPC_MESSAGE_HANDLER(ChromeViewHostMsg_BlockedOutdatedPlugin,
+                        OnBlockedOutdatedPlugin)
+    IPC_MESSAGE_HANDLER(ChromeViewHostMsg_BlockedUnauthorizedPlugin,
+                        OnBlockedUnauthorizedPlugin)
+    IPC_MESSAGE_HANDLER(ChromeViewHostMsg_NPAPINotSupported,
+                        OnNPAPINotSupported)
+#if defined(ENABLE_PLUGIN_INSTALLATION)
+    IPC_MESSAGE_HANDLER(ChromeViewHostMsg_FindMissingPlugin,
+                        OnFindMissingPlugin)
+#endif
+    IPC_MESSAGE_UNHANDLED(return false)
+  IPC_END_MESSAGE_MAP()
+
+  return true;
+}
+
+bool ChromeWebViewPermissionHelperDelegate::OnMessageReceived(
+    const IPC::Message& message) {
+  IPC_BEGIN_MESSAGE_MAP(ChromeWebViewPermissionHelperDelegate, message)
+    IPC_MESSAGE_HANDLER(ChromeViewHostMsg_CouldNotLoadPlugin,
+                        OnCouldNotLoadPlugin)
+    IPC_MESSAGE_HANDLER(ChromeViewHostMsg_OpenAboutPlugins,
+                        OnOpenAboutPlugins)
+#if defined(ENABLE_PLUGIN_INSTALLATION)
+    IPC_MESSAGE_HANDLER(ChromeViewHostMsg_RemovePluginPlaceholderHost,
+                        OnRemovePluginPlaceholderHost)
+#endif
+    IPC_MESSAGE_UNHANDLED(return false)
+  IPC_END_MESSAGE_MAP()
+
+  return true;
+}
+
+void ChromeWebViewPermissionHelperDelegate::OnBlockedUnauthorizedPlugin(
+    const base::string16& name,
+    const std::string& identifier) {
+  const char kPluginName[] = "name";
+  const char kPluginIdentifier[] = "identifier";
+
+  base::DictionaryValue info;
+  info.SetString(std::string(kPluginName), name);
+  info.SetString(std::string(kPluginIdentifier), identifier);
+  web_view_permission_helper_->RequestPermission(
+      WEB_VIEW_PERMISSION_TYPE_LOAD_PLUGIN,
+      info,
+      base::Bind(&ChromeWebViewPermissionHelperDelegate::OnPermissionResponse,
+                 weak_factory_.GetWeakPtr(),
+                 identifier),
+      true /* allowed_by_default */);
+  content::RecordAction(
+      base::UserMetricsAction("WebView.Guest.PluginLoadRequest"));
+}
+
+void ChromeWebViewPermissionHelperDelegate::OnCouldNotLoadPlugin(
+    const base::FilePath& plugin_path) {
+}
+
+void ChromeWebViewPermissionHelperDelegate::OnBlockedOutdatedPlugin(
+    int placeholder_id,
+    const std::string& identifier) {
+}
+
+void ChromeWebViewPermissionHelperDelegate::OnNPAPINotSupported(
+    const std::string& id) {
+}
+
+void ChromeWebViewPermissionHelperDelegate::OnOpenAboutPlugins() {
+}
+
+#if defined(ENABLE_PLUGIN_INSTALLATION)
+void ChromeWebViewPermissionHelperDelegate::OnFindMissingPlugin(
+    int placeholder_id,
+    const std::string& mime_type) {
+  Send(new ChromeViewMsg_DidNotFindMissingPlugin(placeholder_id));
+}
+
+void ChromeWebViewPermissionHelperDelegate::OnRemovePluginPlaceholderHost(
+    int placeholder_id) {
+}
+#endif  // defined(ENABLE_PLUGIN_INSTALLATION)
+
+void ChromeWebViewPermissionHelperDelegate::OnPermissionResponse(
+    const std::string& identifier,
+    bool allow,
+    const std::string& input) {
+  if (allow) {
+    ChromePluginServiceFilter::GetInstance()->AuthorizeAllPlugins(
+        web_contents(), true, identifier);
+  }
+}
+
+#endif  // defined(ENABLE_PLUGINS)
+
+void ChromeWebViewPermissionHelperDelegate::RequestMediaAccessPermission(
+    content::WebContents* source,
+    const content::MediaStreamRequest& request,
+    const content::MediaResponseCallback& callback) {
+  base::DictionaryValue request_info;
+  request_info.SetString(guestview::kUrl, request.security_origin.spec());
+  web_view_permission_helper_->RequestPermission(
+      WEB_VIEW_PERMISSION_TYPE_MEDIA,
+      request_info,
+      base::Bind(
+          &ChromeWebViewPermissionHelperDelegate::OnMediaPermissionResponse,
+          base::Unretained(this),
+          request,
+          callback),
+      false /* allowed_by_default */);
+}
+
+ void ChromeWebViewPermissionHelperDelegate::OnMediaPermissionResponse(
+    const content::MediaStreamRequest& request,
+    const content::MediaResponseCallback& callback,
+    bool allow,
+    const std::string& user_input) {
+  if (!allow || !web_view_guest()->attached()) {
+    // Deny the request.
+    callback.Run(content::MediaStreamDevices(),
+                 content::MEDIA_DEVICE_INVALID_STATE,
+                 scoped_ptr<content::MediaStreamUI>());
+    return;
+  }
+  if (!web_view_guest()->embedder_web_contents()->GetDelegate())
+    return;
+
+  web_view_guest()->embedder_web_contents()->GetDelegate()->
+      RequestMediaAccessPermission(web_view_guest()->embedder_web_contents(),
+                                   request,
+                                   callback);
+}
+
+void ChromeWebViewPermissionHelperDelegate::CanDownload(
+    content::RenderViewHost* render_view_host,
+    const GURL& url,
+    const std::string& request_method,
+    const base::Callback<void(bool)>& callback) {
+  base::DictionaryValue request_info;
+  request_info.SetString(guestview::kUrl, url.spec());
+  web_view_permission_helper_->RequestPermission(
+      WEB_VIEW_PERMISSION_TYPE_DOWNLOAD,
+      request_info,
+      base::Bind(
+          &ChromeWebViewPermissionHelperDelegate::OnDownloadPermissionResponse,
+          base::Unretained(this),
+          callback),
+      false /* allowed_by_default */);
+}
+
+void ChromeWebViewPermissionHelperDelegate::OnDownloadPermissionResponse(
+    const base::Callback<void(bool)>& callback,
+    bool allow,
+    const std::string& user_input) {
+  callback.Run(allow && web_view_guest()->attached());
+}
+
+void ChromeWebViewPermissionHelperDelegate::RequestPointerLockPermission(
+    bool user_gesture,
+    bool last_unlocked_by_target,
+    const base::Callback<void(bool)>& callback) {
+  base::DictionaryValue request_info;
+  request_info.SetBoolean(guestview::kUserGesture, user_gesture);
+  request_info.SetBoolean(webview::kLastUnlockedBySelf,
+                          last_unlocked_by_target);
+  request_info.SetString(guestview::kUrl,
+                         web_contents()->GetLastCommittedURL().spec());
+
+  web_view_permission_helper_->RequestPermission(
+      WEB_VIEW_PERMISSION_TYPE_POINTER_LOCK,
+      request_info,
+      base::Bind(&ChromeWebViewPermissionHelperDelegate::
+                     OnPointerLockPermissionResponse,
+                 base::Unretained(this),
+                 callback),
+      false /* allowed_by_default */);
+}
+
+void ChromeWebViewPermissionHelperDelegate::OnPointerLockPermissionResponse(
+    const base::Callback<void(bool)>& callback,
+    bool allow,
+    const std::string& user_input) {
+  callback.Run(allow && web_view_guest()->attached());
+}
+
+void ChromeWebViewPermissionHelperDelegate::RequestGeolocationPermission(
+    int bridge_id,
+    const GURL& requesting_frame,
+    bool user_gesture,
+    const base::Callback<void(bool)>& callback) {
+  base::DictionaryValue request_info;
+  request_info.SetString(guestview::kUrl, requesting_frame.spec());
+  request_info.SetBoolean(guestview::kUserGesture, user_gesture);
+
+  // It is safe to hold an unretained pointer to
+  // ChromeWebViewPermissionHelperDelegate because this callback is called from
+  // ChromeWebViewPermissionHelperDelegate::SetPermission.
+  const extensions::WebViewPermissionHelper::PermissionResponseCallback
+      permission_callback =
+      base::Bind(&ChromeWebViewPermissionHelperDelegate::
+                     OnGeolocationPermissionResponse,
+                 base::Unretained(this),
+                 bridge_id,
+                 user_gesture,
+                 callback);
+  int request_id = web_view_permission_helper_->RequestPermission(
+      WEB_VIEW_PERMISSION_TYPE_GEOLOCATION,
+      request_info,
+      permission_callback,
+      false /* allowed_by_default */);
+  bridge_id_to_request_id_map_[bridge_id] = request_id;
+}
+
+void ChromeWebViewPermissionHelperDelegate::OnGeolocationPermissionResponse(
+    int bridge_id,
+    bool user_gesture,
+    const base::Callback<void(bool)>& callback,
+    bool allow,
+    const std::string& user_input) {
+  // The <webview> embedder has allowed the permission. We now need to make sure
+  // that the embedder has geolocation permission.
+  RemoveBridgeID(bridge_id);
+
+  if (!allow || !web_view_guest()->attached()) {
+    callback.Run(false);
+    return;
+  }
+
+  Profile* profile = Profile::FromBrowserContext(
+      web_view_guest()->browser_context());
+  GeolocationPermissionContextFactory::GetForProfile(profile)->
+      RequestGeolocationPermission(
+          web_view_guest()->embedder_web_contents(),
+          // The geolocation permission request here is not initiated
+          // through WebGeolocationPermissionRequest. We are only interested
+          // in the fact whether the embedder/app has geolocation
+          // permission. Therefore we use an invalid |bridge_id|.
+          -1,
+          web_view_guest()->embedder_web_contents()->GetLastCommittedURL(),
+          user_gesture,
+          callback,
+          NULL);
+}
+
+void ChromeWebViewPermissionHelperDelegate::CancelGeolocationPermissionRequest(
+    int bridge_id) {
+  int request_id = RemoveBridgeID(bridge_id);
+  web_view_permission_helper_->CancelPendingPermissionRequest(request_id);
+}
+
+int ChromeWebViewPermissionHelperDelegate::RemoveBridgeID(int bridge_id) {
+  std::map<int, int>::iterator bridge_itr =
+      bridge_id_to_request_id_map_.find(bridge_id);
+  if (bridge_itr == bridge_id_to_request_id_map_.end())
+    return webview::kInvalidPermissionRequestID;
+
+  int request_id = bridge_itr->second;
+  bridge_id_to_request_id_map_.erase(bridge_itr);
+  return request_id;
+}
+
+void ChromeWebViewPermissionHelperDelegate::RequestFileSystemPermission(
+    const GURL& url,
+    bool allowed_by_default,
+    const base::Callback<void(bool)>& callback) {
+  base::DictionaryValue request_info;
+  request_info.SetString(guestview::kUrl, url.spec());
+  web_view_permission_helper_->RequestPermission(
+      WEB_VIEW_PERMISSION_TYPE_FILESYSTEM,
+      request_info,
+      base::Bind(&ChromeWebViewPermissionHelperDelegate::
+                     OnFileSystemPermissionResponse,
+                 base::Unretained(this),
+                 callback),
+      allowed_by_default);
+}
+
+void ChromeWebViewPermissionHelperDelegate::OnFileSystemPermissionResponse(
+    const base::Callback<void(bool)>& callback,
+    bool allow,
+    const std::string& user_input) {
+  callback.Run(allow && web_view_guest()->attached());
+}
+
+void ChromeWebViewPermissionHelperDelegate::FileSystemAccessedAsync(
+    int render_process_id,
+    int render_frame_id,
+    int request_id,
+    const GURL& url,
+    bool blocked_by_policy) {
+  RequestFileSystemPermission(
+      url,
+      !blocked_by_policy,
+      base::Bind(&ChromeWebViewPermissionHelperDelegate::
+                     FileSystemAccessedAsyncResponse,
+                 base::Unretained(this),
+                 render_process_id,
+                 render_frame_id,
+                 request_id,
+                 url));
+}
+
+void ChromeWebViewPermissionHelperDelegate::FileSystemAccessedAsyncResponse(
+    int render_process_id,
+    int render_frame_id,
+    int request_id,
+    const GURL& url,
+    bool allowed) {
+  TabSpecificContentSettings::FileSystemAccessed(
+      render_process_id, render_frame_id, url, !allowed);
+  Send(new ChromeViewMsg_RequestFileSystemAccessAsyncResponse(
+      render_frame_id, request_id, allowed));
+}
+
+void ChromeWebViewPermissionHelperDelegate::FileSystemAccessedSync(
+    int render_process_id,
+    int render_frame_id,
+    const GURL& url,
+    bool blocked_by_policy,
+    IPC::Message* reply_msg) {
+  RequestFileSystemPermission(
+      url,
+      !blocked_by_policy,
+      base::Bind(&ChromeWebViewPermissionHelperDelegate::
+                     FileSystemAccessedSyncResponse,
+                 base::Unretained(this),
+                 render_process_id,
+                 render_frame_id,
+                 url,
+                 reply_msg));
+}
+
+void ChromeWebViewPermissionHelperDelegate::FileSystemAccessedSyncResponse(
+    int render_process_id,
+    int render_frame_id,
+    const GURL& url,
+    IPC::Message* reply_msg,
+    bool allowed) {
+  TabSpecificContentSettings::FileSystemAccessed(
+      render_process_id, render_frame_id, url, !allowed);
+  ChromeViewHostMsg_RequestFileSystemAccessSync::WriteReplyParams(reply_msg,
+                                                                  allowed);
+  Send(reply_msg);
+}