Fixes for -Wunused-function on Linux, Android and ChromeOS

chrome/browser/ui/views/location_bar/location_bar_view.cc

Index: chrome/browser/ui/views/location_bar/location_bar_view.cc
diff --git a/chrome/browser/ui/views/location_bar/location_bar_view.cc b/chrome/browser/ui/views/location_bar/location_bar_view.cc
index 180dfc8b77f5da80754ba4d3c712a82f200879cb..69a15a598f87a2ec4998a94153fecd1f0ee8287c 100644
--- a/chrome/browser/ui/views/location_bar/location_bar_view.cc
+++ b/chrome/browser/ui/views/location_bar/location_bar_view.cc
@@ -114,10 +114,12 @@ using views::View;
 
 namespace {
 
+#if !defined(OS_CHROMEOS)
 Browser* GetBrowserFromDelegate(LocationBarView::Delegate* delegate) {
   WebContents* contents = delegate->GetWebContents();
   return contents ? chrome::FindBrowserWithWebContents(contents) : NULL;
 }
+#endif
 
 // Given a containing |height| and a |base_font_list|, shrinks the font size
 // until the font list will fit within |height| while having its cap height