[ChromeDriver] Support mobile emulation on desktop Chrome.

chrome/test/chromedriver/chrome/device_metrics_override_manager.h

-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Copyright (c) 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 CHROME_TEST_CHROMEDRIVER_CHROME_GEOLOCATION_OVERRIDE_MANAGER_H_
-#define CHROME_TEST_CHROMEDRIVER_CHROME_GEOLOCATION_OVERRIDE_MANAGER_H_
+#ifndef CHROME_TEST_CHROMEDRIVER_CHROME_DEVICE_METRICS_OVERRIDE_MANAGER_H_
+#define CHROME_TEST_CHROMEDRIVER_CHROME_DEVICE_METRICS_OVERRIDE_MANAGER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/test/chromedriver/chrome/devtools_event_listener.h"
 
 namespace base {
 class DictionaryValue;
 }
 
 class DevToolsClient;
-struct Geoposition;
+struct DeviceMetrics;
 class Status;
 
-// Overrides the geolocation, if requested, for the duration of the
+// Overrides the device metrics, if requested, for the duration of the
 // given |DevToolsClient|'s lifetime.
-class GeolocationOverrideManager : public DevToolsEventListener {
+class DeviceMetricsOverrideManager : public DevToolsEventListener {
  public:
-  explicit GeolocationOverrideManager(DevToolsClient* client);
-  virtual ~GeolocationOverrideManager();
+  explicit DeviceMetricsOverrideManager(DevToolsClient* client);
+  virtual ~DeviceMetricsOverrideManager();
 
-  Status OverrideGeolocation(const Geoposition& geoposition);
+  Status OverrideDeviceMetrics(const DeviceMetrics& DeviceMetrics);

[stgao, 2014/05/03 00:15:20]

Maybe we don't have to add this function, as we don't change the metrics setting
at runtime. We could pass it in through the constructor.

For each tab (new or existing), before we run window-based commands, we will
connect to it first. And "OnConnected" will be automatically called before we do
anything else.

We just have to send the override there in "OnConnected".

[sam.rawlins, 2014/05/06 23:51:46]

Done.

 
   // Overridden from DevToolsEventListener:
   virtual Status OnConnected(DevToolsClient* client) OVERRIDE;
   virtual Status OnEvent(DevToolsClient* client,
                          const std::string& method,
                          const base::DictionaryValue& params) OVERRIDE;
 
  private:
   Status ApplyOverrideIfNeeded();
 
   DevToolsClient* client_;
-  scoped_ptr<Geoposition> overridden_geoposition_;
+  scoped_ptr<DeviceMetrics> overridden_device_metrics_;
 
-  DISALLOW_COPY_AND_ASSIGN(GeolocationOverrideManager);
+  DISALLOW_COPY_AND_ASSIGN(DeviceMetricsOverrideManager);
 };
 
-#endif  // CHROME_TEST_CHROMEDRIVER_CHROME_GEOLOCATION_OVERRIDE_MANAGER_H_
+#endif  // CHROME_TEST_CHROMEDRIVER_CHROME_DEVICE_METRICS_OVERRIDE_MANAGER_H_