Add cross-platform API to get the form factor of the device

chrome/common/form_factor_android.cc

Index: chrome/common/form_factor_android.cc
diff --git a/chrome/common/form_factor_android.cc b/chrome/common/form_factor_android.cc
new file mode 100644
index 0000000000000000000000000000000000000000..6081bb3776a8408e1482d356fa1d89bb557b0a18
--- /dev/null
+++ b/chrome/common/form_factor_android.cc
@@ -0,0 +1,12 @@
+// Copyright
+
+#include "form_factor.h"

[Alexei Svitkine (slow), 2013/10/29 15:26:21]

Add a blank line after this.

[yao, 2013/10/29 19:21:57]

Done.

+#include "base/command_line.h"
+#include "chrome/common/chrome_switches.h"
+
+Study_FormFactor GetFormFactor() {
+  if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kTabletUI)) {
+    return Study_FormFactor_TABLET;
+  }
+  return Study_FormFactor_PHONE;
+}