Update to Chromium version 72.0.3615.0 (#609159)

- The |category| value for all TRACE calls from CEF client applications is now
  "cef.client" due to https://crrev.com/331266377d.
- The |with_menu_marker| parameter to CreateMenuButton has been removed due to
  https://crrev.com/7f7e382118.

patch/patches/mac_event_observer_2539.patch

@@ -2,7 +2,7 @@ diff --git content/browser/scheduler/responsiveness/native_event_observer_mac.mm
 index 7cb3238e97ed..ae800739b686 100644
 --- content/browser/scheduler/responsiveness/native_event_observer_mac.mm
 +++ content/browser/scheduler/responsiveness/native_event_observer_mac.mm
-@@ -12,13 +12,15 @@
+@@ -12,13 +12,15 @@ namespace content {
  namespace responsiveness {
  
  void NativeEventObserver::RegisterObserver() {