Update viewport_meta setting on any navigation.

content/browser/web_contents/web_contents_impl.cc

Index: content/browser/web_contents/web_contents_impl.cc
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index deee5480624927d91392edcc4f98dc3d9a510024..ac3ac74574a31672dcca9b1dd0a3e1a482947f88 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -2383,8 +2383,8 @@ bool WebContentsImpl::IsVirtualKeyboardRequested() {
 }
 
 bool WebContentsImpl::IsOverridingUserAgent() {
-  return GetController().GetVisibleEntry() &&
-         GetController().GetVisibleEntry()->GetIsOverridingUserAgent();
+  return GetController().GetActiveEntry() &&

[nasko, 2017/01/10 17:33:35]

This is not an ok change, since GetActiveEntry is marked deprecated and we'd
like to remove it. I've traced through calls and I think your previous patch is
the more correct one, even though it will potentially notify on navigations
other than back/forward.

[aelias_OOO_until_Jul13, 2017/01/10 21:31:15]

OK then, I reuploaded patch set 1.

+         GetController().GetActiveEntry()->GetIsOverridingUserAgent();
 }
 
 bool WebContentsImpl::IsJavaScriptDialogShowing() const {