[ChromeDriver] Support mobile emulation on desktop Chrome.

chrome/test/chromedriver/chrome/web_view_impl.h

Index: chrome/test/chromedriver/chrome/web_view_impl.h
diff --git a/chrome/test/chromedriver/chrome/web_view_impl.h b/chrome/test/chromedriver/chrome/web_view_impl.h
index df33053c03fa1e504c12a657fddf60bfb7f04424..a64875edb22811a1b898e4be583102d31756bcf6 100644
--- a/chrome/test/chromedriver/chrome/web_view_impl.h
+++ b/chrome/test/chromedriver/chrome/web_view_impl.h
@@ -25,6 +25,7 @@ class DevToolsClient;
 class DomTracker;
 class FrameTracker;
 class GeolocationOverrideManager;
+class DeviceMetricsOverrideManager;
 class HeapSnapshotTaker;
 struct KeyEvent;
 struct MouseEvent;
@@ -83,6 +84,7 @@ class WebViewImpl : public WebView {
       const std::string& frame_id, bool* is_pending) OVERRIDE;
   virtual JavaScriptDialogManager* GetJavaScriptDialogManager() OVERRIDE;
   virtual Status OverrideGeolocation(const Geoposition& geoposition) OVERRIDE;
+  virtual Status OverrideDeviceMetrics(const DeviceMetrics& device_metrics) OVERRIDE;

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

Over 80 chars.

   virtual Status CaptureScreenshot(std::string* screenshot) OVERRIDE;
   virtual Status SetFileInputFiles(
       const std::string& frame,
@@ -106,6 +108,7 @@ class WebViewImpl : public WebView {
   scoped_ptr<NavigationTracker> navigation_tracker_;
   scoped_ptr<JavaScriptDialogManager> dialog_manager_;
   scoped_ptr<GeolocationOverrideManager> geolocation_override_manager_;
+  scoped_ptr<DeviceMetricsOverrideManager> device_metrics_override_manager_;
   scoped_ptr<HeapSnapshotTaker> heap_snapshot_taker_;
   scoped_ptr<DebuggerTracker> debugger_;
   scoped_ptr<DevToolsClient> client_;