Add support for obtaining AV products on Win7.

chrome/browser/metrics/antivirus_metrics_provider_win.h

 // Copyright 2016 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_METRICS_ANTIVIRUS_METRICS_PROVIDER_WIN_H_
 #define CHROME_BROWSER_METRICS_ANTIVIRUS_METRICS_PROVIDER_WIN_H_
 
 #include "components/metrics/metrics_provider.h"
 
 #include <iwscapi.h>
@@ skipping 40 matching lines @@
     RESULT_GENERIC_FAILURE = 1,
     RESULT_FAILED_TO_INITIALIZE_COM = 2,
     RESULT_FAILED_TO_CREATE_INSTANCE = 3,
     RESULT_FAILED_TO_INITIALIZE_PRODUCT_LIST = 4,
     RESULT_FAILED_TO_GET_PRODUCT_COUNT = 5,
     RESULT_FAILED_TO_GET_ITEM = 6,
     RESULT_FAILED_TO_GET_PRODUCT_STATE = 7,
     RESULT_PRODUCT_STATE_INVALID = 8,
     RESULT_FAILED_TO_GET_PRODUCT_NAME = 9,
     RESULT_FAILED_TO_GET_REMEDIATION_PATH = 10,
-    RESULT_COUNT = 11
+    RESULT_FAILED_TO_CONNECT_TO_WMI = 11,
+    RESULT_FAILED_TO_SET_SECURITY_BLANKET = 12,
+    RESULT_FAILED_TO_EXEC_WMI_QUERY = 13,
+    RESULT_FAILED_TO_ITERATE_RESULTS = 14,
+    RESULT_COUNT = 15
   };
 
   typedef metrics::SystemProfileProto::AntiVirusProduct AvProduct;
 
-  static ResultCode FillAntiVirusProducts(std::vector<AvProduct>* products);
+  // Query COM interface IWSCProductList for installed AV products. This
+  // interface is only available on Windows 8 and above.
+  static ResultCode FillAntiVirusProductsFromWSC(
+      std::vector<AvProduct>* products);
+  // Query WMI ROOT\SecurityCenter2 for installed AV products. This interface is
+  // only available on Windows Vista and above.
+  static ResultCode FillAntiVirusProductsFromWMI(
+      std::vector<AvProduct>* products);
   static std::vector<AvProduct> GetAntiVirusProductsOnFileThread();
 
   // Called when metrics are done being gathered from the FILE thread.
   // |done_callback| is the callback that should be called once all metrics are
   // gathered.
   void GotAntiVirusProducts(const base::Closure& done_callback,
                             const std::vector<AvProduct>& av_products);
 
   // The TaskRunner on which file operations are performed (supplied by the
   // embedder).
   scoped_refptr<base::TaskRunner> task_runner_;
 
   // Information on installed AntiVirus gathered.
   std::vector<AvProduct> av_products_;
 
   base::ThreadChecker thread_checker_;
   base::WeakPtrFactory<AntiVirusMetricsProvider> weak_ptr_factory_;
 
+  FRIEND_TEST_ALL_PREFIXES(AntiVirusMetricsProviderTest, GetMetricsFullName);
+
   DISALLOW_COPY_AND_ASSIGN(AntiVirusMetricsProvider);
 };
 
 #endif  // CHROME_BROWSER_METRICS_ANTIVIRUS_METRICS_PROVIDER_WIN_H_