Enable Device Motion on Android by default.

content/public/common/content_switches.cc

Index: content/public/common/content_switches.cc
diff --git a/content/public/common/content_switches.cc b/content/public/common/content_switches.cc
index 88ee98c17173847579862c3494423485d3e5c81e..66e5464560c16090ec6425a1fc82e0ca752d28c0 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -332,6 +332,11 @@ const char kEnableDelegatedRenderer[]       = "enable-delegated-renderer";
 // Enables device motion events.
 const char kEnableDeviceMotion[]            = "enable-device-motion";
 
+#if defined(OS_ANDROID)
+// Disables device motion events.
+const char kDisableDeviceMotion[]           = "disable-device-motion";
+#endif
+
 // Enables restarting interrupted downloads.
 const char kEnableDownloadResumption[]      = "enable-download-resumption";