Refactor browser window zoom handling and enable zoom icon on all platforms.

chrome/browser/ui/views/frame/browser_view.cc

Index: chrome/browser/ui/views/frame/browser_view.cc
diff --git a/chrome/browser/ui/views/frame/browser_view.cc b/chrome/browser/ui/views/frame/browser_view.cc
index 600d37e78676cbd39fb9fc39c9c71f709695dc4e..5543c4efaf75a484c1a516a4f25baeb5e46301cf 100644
--- a/chrome/browser/ui/views/frame/browser_view.cc
+++ b/chrome/browser/ui/views/frame/browser_view.cc
@@ -686,17 +686,8 @@ void BrowserView::SetStarredState(bool is_starred) {
   GetLocationBarView()->SetStarToggled(is_starred);
 }
 
-void BrowserView::SetZoomIconState(
-    ZoomController::ZoomIconState zoom_icon_state) {
-  GetLocationBarView()->SetZoomIconState(zoom_icon_state);
-}
-
-void BrowserView::SetZoomIconTooltipPercent(int zoom_percent) {
-  GetLocationBarView()->SetZoomIconTooltipPercent(zoom_percent);
-}
-
-void BrowserView::ShowZoomBubble(int zoom_percent) {
-  GetLocationBarView()->ShowZoomBubble(zoom_percent);
+void BrowserView::ZoomChangedForActiveTab(bool can_show_bubble) {
+  GetLocationBarView()->ZoomChangedForActiveTab(can_show_bubble);
 }
 
 gfx::Rect BrowserView::GetRestoredBounds() const {