Change var blah_blah -> blahBlah.

chrome/browser/resources/profiler/profiler.js

Index: chrome/browser/resources/profiler/profiler.js
diff --git a/chrome/browser/resources/profiler/profiler.js b/chrome/browser/resources/profiler/profiler.js
index 86724b9b4c2263211fb580d3dfe46e1d625f63ad..156e806e03b2cb8da574486fc832e34483690eb6 100644
--- a/chrome/browser/resources/profiler/profiler.js
+++ b/chrome/browser/resources/profiler/profiler.js
@@ -2088,25 +2088,25 @@ var MainView = (function() {
 
       // Scan through our sort order and see if we are already sorted on this
       // key. If so, reverse that sort ordering.
-      var found_i = -1;
+      var foundIndex = -1;
       for (var i = 0; i < this.currentSortKeys_.length; ++i) {
         var curKey = this.currentSortKeys_[i];
         if (sortKeysMatch(curKey, key)) {
           this.currentSortKeys_[i] = reverseSortKey(curKey);
-          found_i = i;
+          foundIndex = i;
           break;
         }
       }
 
       if (event.altKey) {
-        if (found_i == -1) {
+        if (foundIndex == -1) {
           // If we weren't already sorted on the column that was alt-clicked,
           // then add it to our sort.
           this.currentSortKeys_.push(key);
         }
       } else {
-        if (found_i != 0 ||
-            !sortKeysMatch(this.currentSortKeys_[found_i], key)) {
+        if (foundIndex != 0 ||
+            !sortKeysMatch(this.currentSortKeys_[foundIndex], key)) {
           // If the column we left-clicked wasn't already our primary column,
           // make it so.
           this.currentSortKeys_ = [key];