Update IntentInterestDataProcessor.

lib/ChartDataProcessor.js

@@ -69,10 +69,11 @@ TimelineDataProcessor.prototype = {
     return parseInt(dayCount) * 24 * 60 * 60 * 1000;
   },
 
-  _setMaxWeightAndDateCount: function(storedData, interest, newDayWeight) {
+  _setMaxWeightAndDateCount: function(storedData, interest, newDayWeight, date) {
     if (!storedData[interest]["maxWeight"] ||
         newDayWeight > storedData[interest]["maxWeight"]) {
       storedData[interest]["maxWeight"] = newDayWeight;
+      storedData[interest]["maxWeightDate"] = date;
     }
     storedData[interest]["dayCount"] =
       Object.keys(storedData[interest]["dates"]).length;
@@ -91,7 +92,7 @@ TimelineDataProcessor.prototype = {
           let visitCountSum = this._arraySum(domainsToCountMap);
           storedData[interest]["dates"][day] =
             {x: this._daysPostEpochToDate(day), size: visitCountSum, domainList: domainsToCountMap};
-          this._setMaxWeightAndDateCount(storedData, interest, visitCountSum);
+          this._setMaxWeightAndDateCount(storedData, interest, visitCountSum, day);
         }
       });
     }
@@ -151,6 +152,9 @@ WeightIntensityDataProcessor.prototype = {
         }
         storedData["interests"][sortedByDayCount[i]["category"]]["x"] = rankDayCount;
         storedData["interests"][sortedByWeights[i]["category"]]["y"] = rankMaxWeight;
+
+        storedData["interests"][sortedByWeights[i]["category"]]["maxWeightDate"] = sortedByWeights[i]["maxWeightDate"];
+        storedData["interests"][sortedByWeights[i]["category"]]["dates"] = sortedByWeights[i]["dates"];
       }
       this._setXYMaxMin(storedData);
     });
@@ -169,6 +173,10 @@ IntentInterestDataProcessor.prototype = {
   consume: function(bucketData) {
     DataProcessorHelper.initChartInStorage("intentInterestData");
     DataProcessorHelper.iterateOverTypeNamespace(bucketData, storage.chartData.intentInterestData, (bucketData, storedData) => {
+      if (!storedData["interests"]) {
+        storedData["interests"] = {};
+      }
+
       let intentX = bucketData["xMin"];
       let intentY = bucketData["yMax"];
       let interestX = bucketData["xMax"];