Update FilteringResult UMA to include whitelist information.

chrome/browser/supervised_user/supervised_user_resource_throttle.cc

 // Copyright 2014 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 "chrome/browser/supervised_user/supervised_user_resource_throttle.h"
 
 #include "base/bind.h"
 #include "base/metrics/sparse_histogram.h"
 #include "chrome/browser/supervised_user/supervised_user_interstitial.h"
 #include "chrome/browser/supervised_user/supervised_user_navigation_observer.h"
@@ skipping 12 matching lines @@
 // These values corresponds to SupervisedUserSafetyFilterResult in
 // tools/metrics/histograms/histograms.xml. If you change anything here, make
 // sure to also update histograms.xml accordingly.
 enum {
   FILTERING_BEHAVIOR_ALLOW = 1,
   FILTERING_BEHAVIOR_ALLOW_UNCERTAIN,
   FILTERING_BEHAVIOR_BLOCK_BLACKLIST,
   FILTERING_BEHAVIOR_BLOCK_SAFESITES,
   FILTERING_BEHAVIOR_BLOCK_MANUAL,
   FILTERING_BEHAVIOR_BLOCK_DEFAULT,
-  FILTERING_BEHAVIOR_MAX = FILTERING_BEHAVIOR_BLOCK_DEFAULT
+  FILTERING_BEHAVIOR_ALLOW_WHITELIST,
+  FILTERING_BEHAVIOR_MAX = FILTERING_BEHAVIOR_ALLOW_WHITELIST
 };
 const int kHistogramFilteringBehaviorSpacing = 100;
 const int kHistogramPageTransitionMaxKnownValue =
     static_cast<int>(ui::PAGE_TRANSITION_KEYWORD_GENERATED);
 const int kHistogramPageTransitionFallbackValue =
     kHistogramFilteringBehaviorSpacing - 1;
-const int kHistogramMax = 700;
+const int kHistogramMax = 800;
 
 static_assert(kHistogramPageTransitionMaxKnownValue <
                   kHistogramPageTransitionFallbackValue,
               "HistogramPageTransition MaxKnownValue must be < FallbackValue");
 static_assert(FILTERING_BEHAVIOR_MAX * kHistogramFilteringBehaviorSpacing +
                   kHistogramPageTransitionFallbackValue < kHistogramMax,
               "Invalid HistogramMax value");
 
 int GetHistogramValueForFilteringBehavior(
     SupervisedUserURLFilter::FilteringBehavior behavior,
     SupervisedUserURLFilter::FilteringBehaviorReason reason,
     bool uncertain) {
   switch (behavior) {
     case SupervisedUserURLFilter::ALLOW:
     case SupervisedUserURLFilter::WARN:
+      if (reason == SupervisedUserURLFilter::WHITELIST)
+        return FILTERING_BEHAVIOR_ALLOW_WHITELIST;
       return uncertain ? FILTERING_BEHAVIOR_ALLOW_UNCERTAIN
                        : FILTERING_BEHAVIOR_ALLOW;
     case SupervisedUserURLFilter::BLOCK:
       switch (reason) {
         case SupervisedUserURLFilter::BLACKLIST:
           return FILTERING_BEHAVIOR_BLOCK_BLACKLIST;
         case SupervisedUserURLFilter::ASYNC_CHECKER:
           return FILTERING_BEHAVIOR_BLOCK_SAFESITES;
         case SupervisedUserURLFilter::WHITELIST:
           NOTREACHED();
@@ skipping 131 matching lines @@
     controller()->Resume();
 }
 
 void SupervisedUserResourceThrottle::OnInterstitialResult(
     bool continue_request) {
   if (continue_request)
     controller()->Resume();
   else
     controller()->Cancel();
 }