Move screenlock_bridge to components/proximity_auth

chrome/browser/signin/proximity_auth_facade.h

Index: chrome/browser/signin/proximity_auth_facade.h
diff --git a/chrome/browser/signin/proximity_auth_facade.h b/chrome/browser/signin/proximity_auth_facade.h
new file mode 100644
index 0000000000000000000000000000000000000000..9a99ed16abf8749481e51c22428088e576b4a0cf
--- /dev/null
+++ b/chrome/browser/signin/proximity_auth_facade.h
@@ -0,0 +1,15 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_SIGNIN_PROXIMITY_AUTH_FACADE_H_
+#define CHROME_BROWSER_SIGNIN_PROXIMITY_AUTH_FACADE_H_
+
+namespace proximity_auth {
+class ScreenlockBridge;
+}
+
+// Returns the global proximity_auth::ScreenlockBridge instance.
+proximity_auth::ScreenlockBridge* GetScreenlockBridgeInstance();
+
+#endif  // CHROME_BROWSER_SIGNIN_PROXIMITY_AUTH_FACADE_H_