Removed use of IsRunningOnIOS8OrLater

ios/net/cookies/cookie_store_ios.mm

 // Copyright 2012 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.
 
 #include "ios/net/cookies/cookie_store_ios.h"
 
 #import <Foundation/Foundation.h>
 #include <stddef.h>
 
 #include "base/bind.h"
@@ skipping 103 matching lines @@
   base::FilePath path = base::mac::GetUserLibraryPath();
   // The relative path of the file (from the user library folder) where
   // WKWebView stores its cookies.
   const std::string kCookiesFilePath = "Cookies/Cookies.binarycookies";
   return path.Append(kCookiesFilePath);
 }
 
 // Clears all cookies from the .binarycookies file.
 // Must be called from a thread where IO operations are allowed.
 // Preconditions: There must be no active WKWebViews present in the app.
+// Note that the .binarycookies file is present only on iOS8+.
 void ClearAllCookiesFromBinaryCookiesFile() {
-  // The .binarycookies file is present only on iOS8+.
-  if (!base::ios::IsRunningOnIOS8OrLater()) {
-    return;
-  }
   base::FilePath path = GetBinaryCookiesFilePath();
   if (base::PathExists(path)) {
     bool success = base::DeleteFile(path, false);
     if (!success) {
       DLOG(WARNING) << "Failed to remove binarycookies file.";
     }
   }
 }
 
 // Builds a NSHTTPCookie from a header cookie line ("Set-Cookie: xxx") and a
@@ skipping 1019 matching lines @@
                     weak_factory_.GetWeakPtr(), callback);
 }
 
 base::Closure CookieStoreIOS::WrapClosure(const base::Closure& callback) {
   DCHECK(thread_checker_.CalledOnValidThread());
   return base::Bind(&CookieStoreIOS::UpdateCachesAfterClosure,
                     weak_factory_.GetWeakPtr(), callback);
 }
 
 }  // namespace net