Issue 32919: Update the Zoom NSMenuItems (Zoom-In/Zoom-out/Actual-Size) when the zoom state changes.

chrome/browser/ui/browser_commands.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/browser_commands.h"
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 35 matching lines @@
 #include "chrome/browser/ui/find_bar/find_bar_controller.h"
 #include "chrome/browser/ui/find_bar/find_tab_helper.h"
 #include "chrome/browser/ui/fullscreen/fullscreen_controller.h"
 #include "chrome/browser/ui/location_bar/location_bar.h"
 #include "chrome/browser/ui/scoped_tabbed_browser_displayer.h"
 #include "chrome/browser/ui/search/search_tab_helper.h"
 #include "chrome/browser/ui/status_bubble.h"
 #include "chrome/browser/ui/tab_contents/core_tab_helper.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/webui/ntp/core_app_launcher_handler.h"
+#include "chrome/browser/ui/zoom/zoom_controller.h"
 #include "chrome/browser/upgrade_detector.h"
 #include "chrome/browser/web_applications/web_app.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/chrome_version_info.h"
 #include "chrome/common/content_restriction.h"
 #include "chrome/common/extensions/manifest_handlers/app_launch_info.h"
 #include "chrome/common/pref_names.h"
 #include "components/bookmarks/browser/bookmark_model.h"
 #include "components/bookmarks/browser/bookmark_utils.h"
 #include "components/google/core/browser/google_util.h"
@@ skipping 512 matching lines @@
     // See http://crbug.com/6380.
     b->tab_strip_model()->GetActiveWebContents()->RestoreFocus();
   }
 }
 
 void CloseTab(Browser* browser) {
   content::RecordAction(UserMetricsAction("CloseTab_Accelerator"));
   browser->tab_strip_model()->CloseSelectedTabs();
 }
 
+bool CanZoomIn(content::WebContents* contents) {
+  ZoomController* zoom_controller = ZoomController::FromWebContents(contents);
+  return zoom_controller->GetZoomPercent() !=
+      contents->GetMaximumZoomPercent() + 1;
+}
+
+bool CanZoomOut(content::WebContents* contents) {
+  ZoomController* zoom_controller = ZoomController::FromWebContents(contents);
+  return zoom_controller->GetZoomPercent() !=
+      contents->GetMinimumZoomPercent();
+}
+
+bool ActualSize(content::WebContents* contents) {
+  ZoomController* zoom_controller = ZoomController::FromWebContents(contents);
+  return zoom_controller->GetZoomPercent() != 100.0f;
+}
+
 void RestoreTab(Browser* browser) {
   content::RecordAction(UserMetricsAction("RestoreTab"));
   TabRestoreService* service =
       TabRestoreServiceFactory::GetForProfile(browser->profile());
   if (service)
     service->RestoreMostRecentEntry(browser->tab_restore_service_delegate(),
                                     browser->host_desktop_type());
 }
 
 TabStripModelDelegate::RestoreTabType GetRestoreTabType(
@@ skipping 688 matching lines @@
                                           browser->profile(),
                                           browser->host_desktop_type()));
   app_browser->tab_strip_model()->AppendWebContents(contents, true);
 
   contents->GetMutableRendererPrefs()->can_accept_load_drops = false;
   contents->GetRenderViewHost()->SyncRendererPrefs();
   app_browser->window()->Show();
 }
 
 }  // namespace chrome