Adjust test expectations for infinite-size images.

content/shell/renderer/layout_test/blink_test_runner.h

 // 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.
 
 #ifndef CONTENT_SHELL_RENDERER_LAYOUT_TEST_BLINK_TEST_RUNNER_H_
 #define CONTENT_SHELL_RENDERER_LAYOUT_TEST_BLINK_TEST_RUNNER_H_
 
 #include <deque>
 #include <memory>
 #include <vector>
@@ skipping 84 matching lines @@
                     const std::string& frontend_url) override;
   void CloseDevTools() override;
   void EvaluateInWebInspector(int call_id, const std::string& script) override;
   std::string EvaluateInWebInspectorOverlay(const std::string& script) override;
   void ClearAllDatabases() override;
   void SetDatabaseQuota(int quota) override;
   void SimulateWebNotificationClick(const std::string& title,
                                     int action_index) override;
   void SimulateWebNotificationClose(const std::string& title,
                                     bool by_user) override;
-  void SetDeviceScaleFactor(float factor) override;
+  bool SetDeviceScaleFactor(float factor) override;
   void SetDeviceColorProfile(const std::string& name) override;
   void EnableUseZoomForDSF() override;
   void SetBluetoothFakeAdapter(const std::string& adapter_name,
                                const base::Closure& callback) override;
   void SetBluetoothManualChooser(bool enable) override;
   void GetBluetoothManualChooserEvents(
       const base::Callback<void(const std::vector<std::string>&)>& callback)
       override;
   void SendBluetoothManualChooserEvent(const std::string& event,
                                        const std::string& argument) override;
@@ skipping 95 matching lines @@
   bool focus_on_next_commit_;
 
   std::unique_ptr<LeakDetector> leak_detector_;
 
   DISALLOW_COPY_AND_ASSIGN(BlinkTestRunner);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_SHELL_RENDERER_LAYOUT_TEST_BLINK_TEST_RUNNER_H_