Don't spin the loading indicator for in-page navigations.

chrome/browser/ui/cocoa/tabs/tab_strip_controller.mm

Index: chrome/browser/ui/cocoa/tabs/tab_strip_controller.mm
diff --git a/chrome/browser/ui/cocoa/tabs/tab_strip_controller.mm b/chrome/browser/ui/cocoa/tabs/tab_strip_controller.mm
index b89ffb1fd753decb8b3552a601d9d615dfc7941f..4212b2d3e583766ea03dff97203486c112ab5f0f 100644
--- a/chrome/browser/ui/cocoa/tabs/tab_strip_controller.mm
+++ b/chrome/browser/ui/cocoa/tabs/tab_strip_controller.mm
@@ -1579,7 +1579,7 @@ NSImage* Overlay(NSImage* ground, NSImage* overlay, CGFloat alpha) {
   } else if (contents->IsWaitingForResponse()) {
     newState = kTabWaiting;
     throbberImage = throbberWaitingImage;
-  } else if (contents->IsLoading()) {
+  } else if (contents->IsLoadingToDifferentDocument()) {
     newState = kTabLoading;
     throbberImage = throbberLoadingImage;
   }