shill: Define mock constructors/destructors in .cc files -- round 1.

The intent is to make compilation faster. See bug report for more info. More to
come.

BUG=chromium-os:19691
TEST=unit tests

Change-Id: Icedbfa7ea21224cc818d3708eebd5582bc11ab4d
Reviewed-on: http://gerrit.chromium.org/gerrit/6773
Tested-by: Darin Petkov <petkov@chromium.org>
Reviewed-by: mukesh agrawal <quiche@chromium.org>
diff --git a/mock_dhcp_config.h b/mock_dhcp_config.h
index 3572e82..6f27cc0 100644
--- a/mock_dhcp_config.h
+++ b/mock_dhcp_config.h
@@ -5,6 +5,7 @@
 #ifndef SHILL_MOCK_DHCP_CONFIG_H_
 #define SHILL_MOCK_DHCP_CONFIG_H_
 
+#include <base/basictypes.h>
 #include <gmock/gmock.h>
 
 #include "shill/dhcp_config.h"
@@ -17,14 +18,13 @@
                  EventDispatcher *dispatcher,
                  DHCPProvider *provider,
                  const std::string &device_name,
-                 GLib *glib)
-      : DHCPConfig(control_interface,
-                   dispatcher,
-                   provider,
-                   device_name,
-                   glib) {}
+                 GLib *glib);
+  virtual ~MockDHCPConfig();
 
   MOCK_METHOD0(RequestIP, bool());
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MockDHCPConfig);
 };
 
 }  // namespace shill