Default zoom was never read from chrome://settings

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 06da9b87d2adbc23ce77c27d10b276b4af13e610..bececbe68688e4d5d9fe749d8ce3843513f24f66 100644
--- a/chrome/browser/ui/browser_commands.cc
+++ b/chrome/browser/ui/browser_commands.cc
@@ -568,8 +568,7 @@ void CloseTab(Browser* browser) {
 bool CanZoomIn(content::WebContents* contents) {
   ui_zoom::ZoomController* zoom_controller =
       ui_zoom::ZoomController::FromWebContents(contents);
-  return zoom_controller->GetZoomPercent() !=
-      contents->GetMaximumZoomPercent() + 1;
+  return zoom_controller->GetZoomPercent() != contents->GetMaximumZoomPercent();
 }
 
 bool CanZoomOut(content::WebContents* contents) {
@@ -579,10 +578,10 @@ bool CanZoomOut(content::WebContents* contents) {
       contents->GetMinimumZoomPercent();
 }
 
-bool ActualSize(content::WebContents* contents) {
+bool IsAtDefaultZoom(content::WebContents* contents) {
   ui_zoom::ZoomController* zoom_controller =
       ui_zoom::ZoomController::FromWebContents(contents);
-  return zoom_controller->GetZoomPercent() != 100.0f;
+  return zoom_controller->IsAtDefaultZoom();
 }
 
 TabStripModelDelegate::RestoreTabType GetRestoreTabType(