Add ConnectionManagerAndroid.

Just a stub implementation that always allow update right now.

Test: mma
Bug: 28800946

Change-Id: I4ff6164d459d142567d49a351f70128f5fc74b9f
diff --git a/shill_proxy.h b/shill_proxy.h
index 78f5b9b..4b466c9 100644
--- a/shill_proxy.h
+++ b/shill_proxy.h
@@ -32,13 +32,9 @@
 // This class implements the connection to shill using real DBus calls.
 class ShillProxy : public ShillProxyInterface {
  public:
-  ShillProxy() = default;
+  ShillProxy();
   ~ShillProxy() override = default;
 
-  // Initializes the ShillProxy instance creating the manager proxy from the
-  // |bus_|.
-  bool Init();
-
   // ShillProxyInterface overrides.
   org::chromium::flimflam::ManagerProxyInterface* GetManagerProxy() override;
   std::unique_ptr<org::chromium::flimflam::ServiceProxyInterface>