Move SigninManagerDelegate into the Signin component.

components/signin/core/signin_manager_delegate.h

Index: components/signin/core/signin_manager_delegate.h
diff --git a/chrome/browser/signin/signin_manager_delegate.h b/components/signin/core/signin_manager_delegate.h
similarity index 61%
rename from chrome/browser/signin/signin_manager_delegate.h
rename to components/signin/core/signin_manager_delegate.h
index 9a70c18d3b7eaebed981167a64a3e05a2cbb25a2..16e90cb0566eee377f274dce807af72dfcee776d 100644
--- a/chrome/browser/signin/signin_manager_delegate.h
+++ b/components/signin/core/signin_manager_delegate.h
@@ -2,11 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_SIGNIN_SIGNIN_MANAGER_DELEGATE_H_
-#define CHROME_BROWSER_SIGNIN_SIGNIN_MANAGER_DELEGATE_H_
+#ifndef COMPONENTS_SIGNIN_CORE_SIGNIN_MANAGER_DELEGATE_H_
+#define COMPONENTS_SIGNIN_CORE_SIGNIN_MANAGER_DELEGATE_H_
 
-// A delegate interface that needs to be supplied to SigninManager by
-// the embedder.
+// A delegate interface that needs to be supplied to the Signin component by
+// its embedder.
 class SigninManagerDelegate {
  public:
   virtual ~SigninManagerDelegate() {}
@@ -16,4 +16,4 @@ class SigninManagerDelegate {
   virtual bool AreSigninCookiesAllowed() = 0;
 };
 
-#endif  // CHROME_BROWSER_SIGNIN_SIGNIN_MANAGER_DELEGATE_H_
+#endif  // COMPONENTS_SIGNIN_CORE_SIGNIN_MANAGER_DELEGATE_H_