Add a test for a simulated click on a link on tapping of gesture.

content/public/test/browser_test_utils.cc

 // Copyright (c) 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 "content/public/test/browser_test_utils.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
 #include "base/process/kill.h"
@@ skipping 390 matching lines @@
   mouse_event.x = point.x();
   mouse_event.y = point.y();
   web_contents->GetRenderViewHost()->ForwardMouseEvent(mouse_event);
 }
 
 void SimulateTapAt(WebContents* web_contents, const gfx::Point& point) {
   blink::WebGestureEvent tap;
   tap.type = blink::WebGestureEvent::GestureTap;
   tap.x = point.x();
   tap.y = point.y();
+  tap.modifiers = blink::WebInputEvent::ControlKey;
   RenderWidgetHostImpl* widget_host =
       RenderWidgetHostImpl::From(web_contents->GetRenderViewHost());
   widget_host->ForwardGestureEvent(tap);
+}
+
+void SimulateTapWithModifiersAt(WebContents* web_contents,
+                                unsigned modifiers,
+                                const gfx::Point& point) {
+  blink::WebGestureEvent tap;
+  tap.type = blink::WebGestureEvent::GestureTap;
+  tap.x = point.x();
+  tap.y = point.y();
+  tap.modifiers = modifiers;
+  RenderWidgetHostImpl* widget_host =
+      RenderWidgetHostImpl::From(web_contents->GetRenderViewHost());
+  widget_host->ForwardGestureEvent(tap);
 }
 
 void SimulateKeyPress(WebContents* web_contents,
                       ui::KeyboardCode key_code,
                       bool control,
                       bool shift,
                       bool alt,
                       bool command) {
   SimulateKeyPressWithCode(
       web_contents, key_code, NULL, control, shift, alt, command);
@@ skipping 530 matching lines @@
 
 bool WebContentsAddedObserver::RenderViewCreatedCalled() {
   if (child_observer_) {
     return child_observer_->render_view_created_called_ &&
            child_observer_->main_frame_created_called_;
   }
   return false;
 }
 
 }  // namespace content