[ChromeDriver] Support mobile emulation on desktop Chrome.

chrome/test/chromedriver/capabilities.h

Index: chrome/test/chromedriver/capabilities.h
diff --git a/chrome/test/chromedriver/capabilities.h b/chrome/test/chromedriver/capabilities.h
index 998c56aed19f08aa454700c9ea970ea90d1bbf32..dea09760f9d7f772cc3ba3e9ecdbf7cc32b5941a 100644
--- a/chrome/test/chromedriver/capabilities.h
+++ b/chrome/test/chromedriver/capabilities.h
@@ -14,7 +14,9 @@
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
+#include "chrome/test/chromedriver/chrome/device_metrics.h"
 #include "chrome/test/chromedriver/chrome/log.h"
+#include "chrome/test/chromedriver/mobile_device.h"

[samuong, 2014/05/07 23:39:36]

This #include is unnecessary here, but should be moved to capabilities.cc since
it's missing from that file.

[sam.rawlins, 2014/05/09 05:35:17]

Done.

 #include "chrome/test/chromedriver/net/net_util.h"
 
 namespace base {
@@ -91,6 +93,9 @@ struct Capabilities {
   // ChromeDriver dies.
   bool detach;
 
+  // Device metrics for use in Device Emulation.
+  DeviceMetrics device_metrics;
+
   // Set of switches which should be removed from default list when launching
   // Chrome.
   std::set<std::string> exclude_switches;