Fix anchoring of permission dialog in full screen mode

This CL updates GetPageInfoAnchorView() to check visibility of the view
hierarchy instead of just single view elements. In Linux/Windows fullscreen
the ToolbarView is not visible while its children's visibility are still set to
true so it's not enough to only check their visibility.

Before:
https://bugs.chromium.org/p/chromium/issues/attachment?aid=337120&signed_aid=2W8EBRpI7WsrXmCDI0TVEA==&inline=1

After:
https://bugs.chromium.org/p/chromium/issues/attachment?aid=337121&signed_aid=aiaQuXt1dB53LM_ahvCL7Q==&inline=1

Bug: 838079
Change-Id: I223f5f78f61e80f7873347ff77ed21949b405949
Reviewed-on: https://chromium-review.googlesource.com/1036964
Commit-Queue: Alan Cutter <alancutter@chromium.org>
Reviewed-by: Michael Wasserman <msw@chromium.org>
Cr-Commit-Position: refs/heads/master@{#555325}

chrome/browser/ui/views/bubble_anchor_util_views.cc

@@ -23,15 +23,13 @@ views::View* GetPageInfoAnchorView(Browser* browser, Anchor anchor) {
 #endif
   BrowserView* browser_view = BrowserView::GetBrowserViewForBrowser(browser);
 
-  if (anchor == kLocationBar &&
-      browser_view->GetLocationBarView()->visible()) {
+  if (anchor == kLocationBar && browser_view->GetLocationBarView()->IsDrawn())
     return browser_view->GetLocationBarView()->GetSecurityBubbleAnchorView();
-  }
   // Fall back to menu button if no location bar present.
 
   views::View* app_menu_button =
       browser_view->toolbar_button_provider()->GetAppMenuButton();
-  if (app_menu_button && app_menu_button->visible())
+  if (app_menu_button && app_menu_button->IsDrawn())
     return app_menu_button;
   return nullptr;
 }