Enable GPU control lists in tests on Windows.

gpu/config/gpu_control_list.h

Index: gpu/config/gpu_control_list.h
diff --git a/gpu/config/gpu_control_list.h b/gpu/config/gpu_control_list.h
index ced3b525d2bb70dcf8eeadb04f1b9232247747d0..29a5f778b44b2113d2114d5577375cd5e9804413 100644
--- a/gpu/config/gpu_control_list.h
+++ b/gpu/config/gpu_control_list.h
@@ -93,6 +93,13 @@ class GPU_EXPORT GpuControlList {
   // Register whether "all" is recognized as all features.
   void set_supports_feature_type_all(bool supported);
 
+  // Enables logging of control list decisions.
+  void enable_control_list_logging(
+      const std::string& control_list_logging_name) {
+    control_list_logging_enabled_ = true;
+    control_list_logging_name_ = control_list_logging_name;
+  }
+
  private:
   friend class GpuControlListEntryTest;
   friend class MachineModelInfoTest;
@@ -289,6 +296,11 @@ class GPU_EXPORT GpuControlList {
         const FeatureMap& feature_map,
         bool supports_feature_type_all);
 
+    // Logs a control list match for this rule in the list identified by
+    // |control_list_logging_name|.
+    void LogControlListMatch(
+        const std::string& control_list_logging_name) const;
+
     // Determines if a given os/gc/machine_model/driver is included in the
     // Entry set.
     bool Contains(OsType os_type, const std::string& os_version,
@@ -479,6 +491,9 @@ class GPU_EXPORT GpuControlList {
   // The features a GpuControlList recognizes and handles.
   FeatureMap feature_map_;
   bool supports_feature_type_all_;
+
+  bool control_list_logging_enabled_;
+  std::string control_list_logging_name_;
 };
 
 }  // namespace gpu