Add flag to communicate last casted app to renderer process

chromecast/common/chromecast_switches.h

Index: chromecast/common/chromecast_switches.h
diff --git a/chromecast/common/chromecast_switches.h b/chromecast/common/chromecast_switches.h
index 34b0f762baf29c001b016e7ed5ddebafcb2c37a5..20cc95680bd52a91f9044e269b0cfdd74ec8e72c 100644
--- a/chromecast/common/chromecast_switches.h
+++ b/chromecast/common/chromecast_switches.h
@@ -19,6 +19,8 @@ extern const char kEnableLocalFileAccesses[];
 // Metrics switches
 extern const char kOverrideMetricsUploadUrl[];
 
+extern const char kLastLaunchedAppId[];

[gunsch, 2015/02/23 21:29:26]

it's a string that's more than just the app id, right? probably
"kLastLaunchedApp" is okay

[kjoswiak, 2015/02/23 22:14:34]

Technically last_app is just the app id, its current_app/previous_app that
aren't, and right now aren't only on chromecast platform. But, I think
kLastLaunchedApp is more consistent with other naming so Done.

+
 }  // namespace switches
 
 #endif  // CHROMECAST_COMMON_CHROMECAST_SWITCHES_H_