clang-format produced code that (choose all that apply): 
- Doesn't match Chromium style

Here's the code before formatting:

-  for (const std::string& notification_id : blocked) {


Here's the code after formatting:

+  for (const std::string &notification_id : blocked) {

Here's how it ought to look:

(no change)

Code review link for full files/context:

https://chromium-review.googlesource.com/c/chromium/src/+/938676