[Chromedriver] Add Device Metrics override support to ChromeDriver via Capabilities

chrome/test/chromedriver/chrome/devtools_http_client.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_DEVTOOLS_HTTP_CLIENT_H_
 #define CHROME_TEST_CHROMEDRIVER_CHROME_DEVTOOLS_HTTP_CLIENT_H_
 
 #include <string>
 #include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/test/chromedriver/chrome/version.h"
 #include "chrome/test/chromedriver/net/sync_websocket_factory.h"
 
 namespace base {
 class TimeDelta;
 }
 
+struct DeviceMetrics;
 class DevToolsClient;
 class NetAddress;
 class Status;
 class URLRequestContextGetter;
 
 struct WebViewInfo {
   enum Type {
     kApp,
     kBackgroundPage,
     kPage,
@@ skipping 27 matching lines @@
 
  private:
   std::vector<WebViewInfo> views_info;
 };
 
 class DevToolsHttpClient {
  public:
   DevToolsHttpClient(
       const NetAddress& address,
       scoped_refptr<URLRequestContextGetter> context_getter,
-      const SyncWebSocketFactory& socket_factory);
+      const SyncWebSocketFactory& socket_factory,
+      scoped_ptr<DeviceMetrics> device_metrics);
   ~DevToolsHttpClient();
 
   Status Init(const base::TimeDelta& timeout);
 
   Status GetWebViewsInfo(WebViewsInfo* views_info);
 
   scoped_ptr<DevToolsClient> CreateClient(const std::string& id);
 
   Status CloseWebView(const std::string& id);
 
   Status ActivateWebView(const std::string& id);
 
   const BrowserInfo* browser_info();
+  const DeviceMetrics* device_metrics();
 
  private:
   Status GetVersion(std::string* browser_version, std::string* blink_version);
   Status CloseFrontends(const std::string& for_client_id);
   bool FetchUrlAndLog(const std::string& url,
                       URLRequestContextGetter* getter,
                       std::string* response);
 
   scoped_refptr<URLRequestContextGetter> context_getter_;
   SyncWebSocketFactory socket_factory_;
   std::string server_url_;
   std::string web_socket_url_prefix_;
   BrowserInfo browser_info_;
+  scoped_ptr<DeviceMetrics> device_metrics_;
 
   DISALLOW_COPY_AND_ASSIGN(DevToolsHttpClient);
 };
 
 namespace internal {
 Status ParseWebViewsInfo(const std::string& data,
                          WebViewsInfo* views_info);
 Status ParseVersionInfo(const std::string& data,
                         std::string* browser_version,
                         std::string* blink_version);
 }  // namespace internal
 
 #endif  // CHROME_TEST_CHROMEDRIVER_CHROME_DEVTOOLS_HTTP_CLIENT_H_