DevTools: Switch to using fast stack iterator to collect stacks during timeline recording.

third_party/WebKit/Source/devtools/front_end/externs.js

Index: third_party/WebKit/Source/devtools/front_end/externs.js
diff --git a/third_party/WebKit/Source/devtools/front_end/externs.js b/third_party/WebKit/Source/devtools/front_end/externs.js
index 93211c512909228bfb9882af93204317d5348036..17ba2ff5f19d3dac8fc5da14136b19f94c3375f5 100644
--- a/third_party/WebKit/Source/devtools/front_end/externs.js
+++ b/third_party/WebKit/Source/devtools/front_end/externs.js
@@ -180,6 +180,14 @@ Array.prototype.mergeOrdered = function(array, comparator) {}
  */
 Array.prototype.fill = function(value, start, end) {}
 
+/**
+ * @param {function(this:S,T,number,!Array<T>)} callback
+ * @param {?S=} thisArg
+ * @this {!Array<T>}
+ * @template T,S
+ */
+Array.prototype.find = function(callback, thisArg) {}
+
 // File System API
 /**
  * @constructor