[Mac] Maximise timer slack for background tabs

chrome/browser/ui/tab_helpers.cc

Index: chrome/browser/ui/tab_helpers.cc
diff --git a/chrome/browser/ui/tab_helpers.cc b/chrome/browser/ui/tab_helpers.cc
index 05924e3767b77f4e4895d89d4a3ee6383fd11f32..f3f740a3be2dfc3a7a924d6f54af688d21b7e2e9 100644
--- a/chrome/browser/ui/tab_helpers.cc
+++ b/chrome/browser/ui/tab_helpers.cc
@@ -14,6 +14,7 @@
 #include "chrome/browser/net/net_error_tab_helper.h"
 #include "chrome/browser/password_manager/chrome_password_manager_client.h"
 #include "chrome/browser/prerender/prerender_tab_helper.h"
+#include "chrome/browser/resource_throttle.h"
 #include "chrome/browser/sessions/session_tab_helper.h"
 #include "chrome/browser/ssl/ssl_tab_helper.h"
 #include "chrome/browser/tab_contents/navigation_metrics_recorder.h"
@@ -113,6 +114,7 @@ void TabHelpers::AttachTabHelpers(WebContents* web_contents) {
 
   // --- Common tab helpers ---
 
+  ResourceThrottle::CreateForWebContents(web_contents);

[Avi (use Gerrit), 2014/05/20 14:41:39]

Alphabetically, please!

   autofill::TabAutofillManagerDelegate::CreateForWebContents(web_contents);
   autofill::ContentAutofillDriver::CreateForWebContentsAndDelegate(
       web_contents,