Don't update TabSpecificContentSettings on same-page navigation

chrome/browser/content_settings/tab_specific_content_settings.cc

Index: chrome/browser/content_settings/tab_specific_content_settings.cc
diff --git a/chrome/browser/content_settings/tab_specific_content_settings.cc b/chrome/browser/content_settings/tab_specific_content_settings.cc
index 9b653b3d74fb3595f4d86b0e3adb7d1c47e1943f..fd04a18f5d13357cf60ebe586d5c2fabb88451c8 100644
--- a/chrome/browser/content_settings/tab_specific_content_settings.cc
+++ b/chrome/browser/content_settings/tab_specific_content_settings.cc
@@ -800,7 +800,7 @@ bool TabSpecificContentSettings::OnMessageReceived(
 
 void TabSpecificContentSettings::DidStartNavigation(
     content::NavigationHandle* navigation_handle) {
-  if (!navigation_handle->IsInMainFrame())
+  if (!navigation_handle->IsInMainFrame() || navigation_handle->IsSamePage())
     return;
 
   const content::NavigationController& controller =