[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..71a7ae07f49bc6b11b63edd30fde981e307ac088 100644
--- a/chrome/test/chromedriver/chrome/web_view_impl.h
+++ b/chrome/test/chromedriver/chrome/web_view_impl.h
@@ -21,10 +21,12 @@ class Value;
 
 struct BrowserInfo;
 class DebuggerTracker;
+struct DeviceMetrics;
 class DevToolsClient;
 class DomTracker;
 class FrameTracker;
 class GeolocationOverrideManager;
+class MobileEmulationOverrideManager;
 class HeapSnapshotTaker;
 struct KeyEvent;
 struct MouseEvent;
@@ -36,6 +38,10 @@ class WebViewImpl : public WebView {
   WebViewImpl(const std::string& id,
               const BrowserInfo* browser_info,
               scoped_ptr<DevToolsClient> client);
+  WebViewImpl(const std::string& id,
+              const BrowserInfo* browser_info,
+              scoped_ptr<DevToolsClient> client,
+              const DeviceMetrics* device_metrics);
   virtual ~WebViewImpl();
 
   // Overridden from WebView:
@@ -105,6 +111,7 @@ class WebViewImpl : public WebView {
   scoped_ptr<FrameTracker> frame_tracker_;
   scoped_ptr<NavigationTracker> navigation_tracker_;
   scoped_ptr<JavaScriptDialogManager> dialog_manager_;
+  scoped_ptr<MobileEmulationOverrideManager> mobile_emulation_override_manager_;
   scoped_ptr<GeolocationOverrideManager> geolocation_override_manager_;
   scoped_ptr<HeapSnapshotTaker> heap_snapshot_taker_;
   scoped_ptr<DebuggerTracker> debugger_;