Compute the popup location/size correctly when use-zoom-for-dsf is enabled.

components/test_runner/test_runner.h

 // Copyright 2014 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_TEST_RUNNER_H_
 #define COMPONENTS_TEST_RUNNER_TEST_RUNNER_H_
 
 #include <deque>
 #include <set>
 #include <string>
@@ skipping 501 matching lines @@
 
   // Gives focus to the window.
   void SetWindowIsKey(bool value);
 
   // Converts a URL starting with file:///tmp/ to the local mapping.
   std::string PathToLocalResource(const std::string& path);
 
   // Used to set the device scale factor.
   void SetBackingScaleFactor(double value, v8::Local<v8::Function> callback);
 
+  // Enable zoom-for-dsf option.
+  // TODO(oshima): Remove this once all platforms migrated.
+  void EnableUseZoomForDSF(v8::Local<v8::Function> callback);
+
   // Change the device color profile while running a layout test.
   void SetColorProfile(const std::string& name,
                        v8::Local<v8::Function> callback);
 
   // Change the bluetooth test data while running a layout test and resets the
   // chooser to accept the first device.
   void SetBluetoothMockDataSet(const std::string& name);
 
   // Makes the Bluetooth chooser record its input and wait for instructions from
   // the test program on how to proceed.
@@ skipping 303 matching lines @@
   bool use_mock_theme_;
 
   base::WeakPtrFactory<TestRunner> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TestRunner);
 };
 
 }  // namespace test_runner
 
 #endif  // COMPONENTS_TEST_RUNNER_TEST_RUNNER_H_