From 34d401ce78aadca6e4d62d3304fe011ab7d95956 Mon Sep 17 00:00:00 2001
From: Tim van der Lippe <tvanderlippe@google.com>
Date: Thu, 10 Aug 2017 12:29:47 -0700
Subject: [PATCH] Fix missing window.perfTiming and correct line-endings

---
 .gitattributes |   1 +
 perf.js        | 135 +++++++++++++++++++++++++------------------------
 2 files changed, 70 insertions(+), 66 deletions(-)
 create mode 100644 .gitattributes

diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..2125666
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+* text=auto
\ No newline at end of file
diff --git a/perf.js b/perf.js
index e1bae03..3aad6c4 100644
--- a/perf.js
+++ b/perf.js
@@ -1,66 +1,69 @@
-/**
- * @license
- * Copyright (c) 2017 The Polymer Project Authors. All rights reserved.
- * This code may only be used under the BSD style license found at http:polymer.github.io/LICENSE.txt
- * The complete set of authors may be found at http:polymer.github.io/AUTHORS.txt
- * The complete set of contributors may be found at http:polymer.github.io/CONTRIBUTORS.txt
- * Code distributed by Google as part of the polymer project is also
- * subject to an additional IP rights grant found at http:polymer.github.io/PATENTS.txt
- */
-// x-browser compat.
-(function() {
-  let wcr = false;
-
-  addEventListener('WebComponentsReady', function() {
-    wcr = true;
-  });
-
-  console.perf = function() {
-    if (window.HTMLImports && !HTMLImports.useNative && !wcr) {
-      let fn = console._perf.bind(console);
-      HTMLImports.whenReady(fn);
-    } else {
-      console._perf();
-    }
-  };
-
-  console._perf = function() {
-    if (window.gc) {
-      for (let i=0; i<20; i++) {
-        gc();
-      }
-    }
-    if (console.time) {
-      console.time('perf');
-    }
-    console.perf.time = performance.now();
-  };
-
-  console.perfEnd = function(info) {
-    if (window.WebComponents) {
-      if (!wcr) {
-        addEventListener('WebComponentsReady', function() {
-          console._perfEnd(info);
-        });
-      } else {
-        console._perfEnd(info);
-      }
-    } else {
-      console._perfEnd(info);
-    }
-  };
-
-  console._perfEnd = function(info) {
-    // force layout
-    document.body.offsetWidth;
-    let time = performance.now() - console.perf.time;
-    if (console.time) {
-      console.timeEnd('perf');
-    }
-    document.title = time.toFixed(1) + 'ms: ' + document.title;
-    if (window.top !== window) {
-      window.top.postMessage({time: time + 'ms', info: info}, '*');
-    }
-  };
-
-})();
+/**
+ * @license
+ * Copyright (c) 2017 The Polymer Project Authors. All rights reserved.
+ * This code may only be used under the BSD style license found at
+ * http:polymer.github.io/LICENSE.txt The complete set of authors may be found
+ * at http:polymer.github.io/AUTHORS.txt The complete set of contributors may be
+ * found at http:polymer.github.io/CONTRIBUTORS.txt Code distributed by Google
+ * as part of the polymer project is also subject to an additional IP rights
+ * grant found at http:polymer.github.io/PATENTS.txt
+ */
+// x-browser compat.
+(function() {
+let wcr = false;
+
+addEventListener('WebComponentsReady', function() {
+  wcr = true;
+});
+
+console.perf = function() {
+  if (window.HTMLImports && !HTMLImports.useNative && !wcr) {
+    let fn = console._perf.bind(console);
+    HTMLImports.whenReady(fn);
+  } else {
+    console._perf();
+  }
+};
+
+console._perf = function() {
+  if (window.gc) {
+    for (let i = 0; i < 20; i++) {
+      gc();
+    }
+  }
+  if (console.time) {
+    console.time('perf');
+  }
+  console.perf.time = performance.now();
+};
+
+console.perfEnd = function(info) {
+  if (window.WebComponents) {
+    if (!wcr) {
+      addEventListener('WebComponentsReady', function() {
+        console._perfEnd(info);
+      });
+    } else {
+      console._perfEnd(info);
+    }
+  } else {
+    console._perfEnd(info);
+  }
+};
+
+console._perfEnd = function(info, options = {}) {
+  if (!options.skipForceLayout) {
+    // force layout
+    document.body.offsetWidth;
+  }
+  window.perfTiming = performance.now() - console.perf.time;
+  if (console.time) {
+    console.timeEnd('perf');
+  }
+  document.title = window.perfTiming.toFixed(1) + 'ms: ' + document.title;
+  if (window.top !== window) {
+    window.top.postMessage({time: window.perfTiming + 'ms', info}, '*');
+  }
+};
+
+})();