Rename base::Timer to base::TimerBase

https://chromium-review.googlesource.com/c/chromium/src/+/1124200

atom/browser/atom_browser_main_parts.cc

@@ -73,7 +73,6 @@ AtomBrowserMainParts::AtomBrowserMainParts(
       browser_(new Browser),
       node_bindings_(NodeBindings::Create(NodeBindings::BROWSER)),
       atom_bindings_(new AtomBindings(uv_default_loop())),
-      gc_timer_(true, true),
       main_function_params_(params) {
   DCHECK(!self_) << "Cannot have two AtomBrowserMainParts";
   self_ = this;

atom/browser/atom_browser_main_parts.h

@@ -125,7 +125,7 @@ class AtomBrowserMainParts : public brightray::BrowserMainParts {
   std::unique_ptr<net_log::ChromeNetLog> net_log_;
   std::unique_ptr<IconManager> icon_manager_;
 
-  base::Timer gc_timer_;
+  base::RepeatingTimer gc_timer_;
 
   // List of callbacks should be executed before destroying JS env.
   std::list<base::OnceClosure> destructors_;