DevTools: fix Ctrl-Plus/Ctrl-Minus shortcuts for zooming in hosted mode

Source/devtools/front_end/host/InspectorFrontendHost.js

Index: Source/devtools/front_end/host/InspectorFrontendHost.js
diff --git a/Source/devtools/front_end/host/InspectorFrontendHost.js b/Source/devtools/front_end/host/InspectorFrontendHost.js
index 00c50e304fbabe81c25a3c82222b247defa207af..011adffffbc371743d505e7589157a54dbe51c9c 100644
--- a/Source/devtools/front_end/host/InspectorFrontendHost.js
+++ b/Source/devtools/front_end/host/InspectorFrontendHost.js
@@ -296,9 +296,20 @@ InspectorFrontendHostAPI.prototype = {
 /**
  * @constructor
  * @implements {InspectorFrontendHostAPI}
+ * @suppressGlobalPropertiesCheck
  */
 WebInspector.InspectorFrontendHostStub = function()
 {
+    /**
+     * @param {!Event} event
+     */
+    function stopEventPropagation(event)
+    {
+        // Let browser handle Ctrl+/Ctrl- shortcuts in hosted mode.
+        if (event.ctrlKey && (event.keyCode === 187 || event.keyCode === 189))
+            event.stopPropagation();
+    }
+    document.addEventListener("keydown", stopEventPropagation, true);
 }
 
 WebInspector.InspectorFrontendHostStub.prototype = {