Update to Chromium revision 0bfd25d4 (#381305)

- Delete include/cef_runnable.h (issue #1336).
- Build the cef_unittests target using all Chromium headers. Add a
  USING_CHROMIUM_INCLUDES define and libcef_dll_wrapper_unittests
  target to support this. This change avoids compile errors due to
  the divergence of CEF and Chromium base/ header implementations.
  The libcef_dll_wrapper sources must now compile successfully with
  both CEF and Chromium base/ headers (issue #1632).
- The onbeforeunload message specified via JavaScript is no longer
  passed to the client (see http://crbug.com/587940).

libcef/browser/permissions/permission_manager.cc

@@ -175,13 +175,11 @@ int CefPermissionManager::RequestPermission(
     PermissionType permission,
     content::RenderFrameHost* render_frame_host,
     const GURL& requesting_origin,
-    bool user_gesture,
     const base::Callback<void(PermissionStatus)>& callback) {
   return RequestPermissions(
       std::vector<PermissionType>(1, permission),
       render_frame_host,
       requesting_origin,
-      user_gesture,
       base::Bind(&PermissionRequestResponseCallbackWrapper, callback));
 }
 
@@ -189,7 +187,6 @@ int CefPermissionManager::RequestPermissions(
     const std::vector<PermissionType>& permissions,
     content::RenderFrameHost* render_frame_host,
     const GURL& requesting_origin,
-    bool user_gesture,
     const base::Callback<void(
         const std::vector<PermissionStatus>&)>& callback) {
   if (permissions.empty()) {
@@ -218,7 +215,7 @@ int CefPermissionManager::RequestPermissions(
     }
 
     context_.RequestPermission(
-        permission, web_contents, request, requesting_origin, user_gesture,
+        permission, web_contents, request, requesting_origin,
         base::Bind(&ContentSettingToPermissionStatusCallbackWrapper,
             base::Bind(
                 &CefPermissionManager::OnPermissionsRequestResponseStatus,