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_context.cc

@@ -77,7 +77,6 @@ void CefPermissionContext::RequestPermission(
     content::WebContents* web_contents,
     const PermissionRequestID& id,
     const GURL& requesting_frame,
-    bool user_gesture,
     const BrowserPermissionCallback& callback) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 
@@ -86,7 +85,6 @@ void CefPermissionContext::RequestPermission(
                    id,
                    requesting_frame.GetOrigin(),
                    web_contents->GetLastCommittedURL().GetOrigin(),
-                   user_gesture,
                    callback);
 }
 
@@ -144,7 +142,6 @@ void CefPermissionContext::DecidePermission(
     const PermissionRequestID& id,
     const GURL& requesting_origin,
     const GURL& embedding_origin,
-    bool user_gesture,
     const BrowserPermissionCallback& callback) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);