[ChromeDriver] Support mobile emulation on desktop Chrome.

chrome/test/chromedriver/chrome/web_view.h

 // Copyright (c) 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 CHROME_TEST_CHROMEDRIVER_CHROME_WEB_VIEW_H_
 #define CHROME_TEST_CHROMEDRIVER_CHROME_WEB_VIEW_H_
 
 #include <list>
 #include <string>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 
 namespace base {
 class DictionaryValue;
 class FilePath;
 class ListValue;
 class TimeDelta;
 class Value;
 }
 
 class DevToolsClient;
 struct Geoposition;
+struct DeviceMetrics;

[stgao, 2014/04/30 03:32:55]

Not in order.

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

Done.

 class JavaScriptDialogManager;
 struct KeyEvent;
 struct MouseEvent;
 struct TouchEvent;
 class Status;
 
 class WebView {
  public:
   virtual ~WebView() {}
 
@@ skipping 98 matching lines @@
   // Returns whether the frame is pending navigation.
   virtual Status IsPendingNavigation(
       const std::string& frame_id, bool* is_pending) = 0;
 
   // Returns the JavaScriptDialogManager. Never null.
   virtual JavaScriptDialogManager* GetJavaScriptDialogManager() = 0;
 
   // Overrides normal geolocation with a given geoposition.
   virtual Status OverrideGeolocation(const Geoposition& geoposition) = 0;
 
+  // Overrides normal device metrics with a given set of metrics.
+  virtual Status OverrideDeviceMetrics(const DeviceMetrics& device_metrics) = 0;

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

Same as my comment in device_metrics_override_manager.h, we could use the
"OnConnected" event to override the metrics through DevTools.
So we don't have to override device metrics for each WebView explicitly.

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

Done.

+
   // Captures the visible portions of the web view as a base64-encoded PNG.
   virtual Status CaptureScreenshot(std::string* screenshot) = 0;
 
   // Set files in a file input element.
   // |element| is the WebElement JSON Object of the input element.
   virtual Status SetFileInputFiles(
       const std::string& frame,
       const base::DictionaryValue& element,
       const std::vector<base::FilePath>& files) = 0;
 
   // Take a heap snapshot which can build up a graph of Javascript objects.
   // A raw heap snapshot is in JSON format:
   //  1. A meta data element "snapshot" about how to parse data elements.
   //  2. Data elements: "nodes", "edges", "strings".
   virtual Status TakeHeapSnapshot(scoped_ptr<base::Value>* snapshot) = 0;
 };
 
 #endif  // CHROME_TEST_CHROMEDRIVER_CHROME_WEB_VIEW_H_