Make command-zero reset page scale in addition to zoom level

chrome/browser/ui/browser_commands.cc

Index: chrome/browser/ui/browser_commands.cc
diff --git a/chrome/browser/ui/browser_commands.cc b/chrome/browser/ui/browser_commands.cc
index bececbe68688e4d5d9fe749d8ce3843513f24f66..0b7fc6ff931685c3a662b40cd43adffa8952761a 100644
--- a/chrome/browser/ui/browser_commands.cc
+++ b/chrome/browser/ui/browser_commands.cc
@@ -578,10 +578,11 @@ bool CanZoomOut(content::WebContents* contents) {
       contents->GetMinimumZoomPercent();
 }
 
-bool IsAtDefaultZoom(content::WebContents* contents) {
+bool CanResetZoom(content::WebContents* contents) {
   ui_zoom::ZoomController* zoom_controller =
       ui_zoom::ZoomController::FromWebContents(contents);
-  return zoom_controller->IsAtDefaultZoom();
+  return !zoom_controller->IsAtDefaultZoom() ||
+         !zoom_controller->PageScaleFactorIsOne();
 }
 
 TabStripModelDelegate::RestoreTabType GetRestoreTabType(