Update to Chromium revision 304f01a1 (#358063)

- Improve ordering of CefLoadHandler callbacks. OnLoadingStateChange will
  be called before and after all calls to OnLoadStart and OnLoadEnd.
  OnLoadStart/OnLoadEnd calls will occur as matching pairs
  (see http://crbug.com/539952#c2).
- Remove the |requesting_url| argument to CefGeolocationHandler::
  OnCancelGeolocationPermission. Clients can use the |request_id| argument
  to track this information themselves.
- Fix a crash when loading the PDF extension in multiple browsers with a
  custom CefRequestContext (issue #1757).

libcef/browser/permissions/permission_util.cc

@@ -0,0 +1,49 @@
+// Copyright 2015 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 "libcef/browser/permissions/permission_util.h"
+
+#include "base/logging.h"
+
+using content::PermissionType;
+
+namespace permission_util {
+
+ContentSettingsType PermissionTypeToContentSetting(PermissionType permission) {
+  switch (permission) {
+    case PermissionType::MIDI_SYSEX:
+      return CONTENT_SETTINGS_TYPE_MIDI_SYSEX;
+    case PermissionType::PUSH_MESSAGING:
+      return CONTENT_SETTINGS_TYPE_PUSH_MESSAGING;
+    case PermissionType::NOTIFICATIONS:
+      return CONTENT_SETTINGS_TYPE_NOTIFICATIONS;
+    case PermissionType::GEOLOCATION:
+      return CONTENT_SETTINGS_TYPE_GEOLOCATION;
+    case PermissionType::PROTECTED_MEDIA_IDENTIFIER:
+#if defined(OS_ANDROID) || defined(OS_CHROMEOS)
+      return CONTENT_SETTINGS_TYPE_PROTECTED_MEDIA_IDENTIFIER;
+#else
+      NOTIMPLEMENTED();
+      break;
+#endif
+    case PermissionType::DURABLE_STORAGE:
+      return CONTENT_SETTINGS_TYPE_DURABLE_STORAGE;
+    case PermissionType::MIDI:
+      // This will hit the NOTREACHED below.
+      break;
+    case PermissionType::AUDIO_CAPTURE:
+      return CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC;
+    case PermissionType::VIDEO_CAPTURE:
+      return CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA;
+    case PermissionType::NUM:
+      // This will hit the NOTREACHED below.
+      break;
+  }
+
+  NOTREACHED() << "Unknown content setting for permission "
+               << static_cast<int>(permission);
+  return CONTENT_SETTINGS_TYPE_DEFAULT;
+}
+
+}  // namespace permission_util