Scale the emulated event in EventSender when use-zoom-for-dsf is enabled

components/test_runner/web_test_delegate.h

 // Copyright 2013 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.
 
 #ifndef COMPONENTS_TEST_RUNNER_WEB_TEST_DELEGATE_H_
 #define COMPONENTS_TEST_RUNNER_WEB_TEST_DELEGATE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 140 matching lines @@
 
   // Controls Web Notifications.
   virtual void SimulateWebNotificationClick(const std::string& title,
                                             int action_index) = 0;
   virtual void SimulateWebNotificationClose(const std::string& title,
                                             bool by_user) = 0;
 
   // Controls the device scale factor of the main WebView for hidpi tests.
   virtual void SetDeviceScaleFactor(float factor) = 0;
 
+  // When use-zoom-for-dsf mode is enabled, this returns the scale to
+  // convert from window coordinates to viewport coordinates. When
+  // use-zoom-for-dsf is disabled, this return always 1.0f.
+  virtual float GetWindowToViewportScale() = 0;
+
   // Enable zoom-for-dsf option.
   virtual void EnableUseZoomForDSF() = 0;
 
   // Returns whether or not the use-zoom-for-dsf flag is enabled.
   virtual bool IsUseZoomForDSFEnabled() = 0;
 
   // Change the device color profile while running a layout test.
   virtual void SetDeviceColorProfile(const std::string& name) = 0;
 
   // Set the bluetooth adapter while running a layout test, uses Mojo to
@@ skipping 98 matching lines @@
 
   virtual float GetDeviceScaleFactorForTest() const = 0;
 
   // Run all pending idle tasks, and then run callback.
   virtual void RunIdleTasks(const base::Closure& callback) = 0;
 };
 
 }  // namespace test_runner
 
 #endif  // COMPONENTS_TEST_RUNNER_WEB_TEST_DELEGATE_H_