Zoom Extension API (chrome)

chrome/browser/ui/browser.cc

Index: chrome/browser/ui/browser.cc
diff --git a/chrome/browser/ui/browser.cc b/chrome/browser/ui/browser.cc
index 93d45dd7db8880c471ac33dfc700f684b48e8b0f..dc6f3d134bd49fd850664cde59d8f615f96f347a 100644
--- a/chrome/browser/ui/browser.cc
+++ b/chrome/browser/ui/browser.cc
@@ -50,6 +50,8 @@
 #include "chrome/browser/download/download_service.h"
 #include "chrome/browser/download/download_service_factory.h"
 #include "chrome/browser/download/download_shelf.h"
+#include "chrome/browser/extensions/api/tabs/tabs_event_router.h"
+#include "chrome/browser/extensions/api/tabs/tabs_windows_api.h"
 #include "chrome/browser/extensions/browser_extension_window_controller.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/tab_helper.h"
@@ -1850,6 +1852,18 @@ void Browser::OnZoomChanged(content::WebContents* source,
   }
 }
 
+void Browser::OnZoomChangeInitiated(content::WebContents* web_contents,
+                                    double old_zoom_level,
+                                    double new_zoom_level,
+                                    ZoomMode zoom_mode) {
+  // TODO(wjmaclean) Is there any way we could hook the TabsEventRouter up
+  // directly as a ZoomObserver?
+  extensions::TabsWindowsAPI* tabs_windows_api =
+      extensions::TabsWindowsAPI::Get(web_contents->GetBrowserContext());
+  tabs_windows_api->tabs_event_router()->OnZoomChangeInitiated(
+      web_contents, old_zoom_level, new_zoom_level, zoom_mode);
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 // Browser, ui::SelectFileDialog::Listener implementation: