ARC: Implement the startScan API to start scanning of WiFI APs.

components/arc/common/net.mojom

Index: components/arc/common/net.mojom
diff --git a/components/arc/common/net.mojom b/components/arc/common/net.mojom
index d7543b70f8b243df7465b47a7cad26fec42b0b47..b86e01223ad5cb165397e8d4d3f31eb046a87466 100644
--- a/components/arc/common/net.mojom
+++ b/components/arc/common/net.mojom
@@ -33,6 +33,9 @@ interface NetHost {
 
   // Sends a request to get enabled / disabled status of WiFi.
   GetWifiEnabledState@1() => (bool is_enabled);
+
+  // Sends a request to start scan of WiFi APs.
+  [MinVersion=1] StartScan@2() => ();

[cernekee, 2016/02/10 21:37:58]

Per our discussion yesterday, we'll implement this as:

ARC->Chrome:

StartScan(); // no callback

Chrome->ARC:

ScanCompleted(); // can arrive at any time, even unsolicited

[abhishekbh, 2016/02/12 02:17:33]

Done.

 };
 
 interface NetInstance {