Add ResetModem method and call it once non_cellular activation is done.

chromeos/dbus/shill_device_client.cc

Index: chromeos/dbus/shill_device_client.cc
diff --git a/chromeos/dbus/shill_device_client.cc b/chromeos/dbus/shill_device_client.cc
index e44eca10904b4115fcb8bb42e29fe4cdb3011ef3..92f67a81cd5f313f5937a66773bf60e62ffedefb 100644
--- a/chromeos/dbus/shill_device_client.cc
+++ b/chromeos/dbus/shill_device_client.cc
@@ -178,6 +178,15 @@ class ShillDeviceClientImpl : public ShillDeviceClient {
         &method_call, callback, error_callback);
   }
 
+  virtual void Reset(const dbus::ObjectPath& device_path,
+                     const base::Closure& callback,
+                     const ErrorCallback& error_callback) OVERRIDE {
+    dbus::MethodCall method_call(flimflam::kFlimflamDeviceInterface,
+                                 shill::kResetFunction);
+    GetHelper(device_path)->CallVoidMethodWithErrorCallback(
+        &method_call, callback, error_callback);
+  }
+
   virtual TestInterface* GetTestInterface() OVERRIDE {
     return NULL;
   }
@@ -367,6 +376,14 @@ class ShillDeviceClientStubImpl : public ShillDeviceClient,
     MessageLoop::current()->PostTask(FROM_HERE, callback);
   }
 
+  virtual void Reset(const dbus::ObjectPath& device_path,
+                     const base::Closure& callback,
+                     const ErrorCallback& error_callback) OVERRIDE {
+    if (callback.is_null())
+      return;
+    MessageLoop::current()->PostTask(FROM_HERE, callback);
+  }
+
   virtual ShillDeviceClient::TestInterface* GetTestInterface() OVERRIDE {
     return this;
   }