[Content] Allow V8ValueConverter to convert -0 to an integer

chrome/test/data/extensions/platform_apps/window_api/test.js

 // Copyright 2013 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.
 
 var callbackPass = chrome.test.callbackPass;
 var callbackFail = chrome.test.callbackFail;
 var defaultFuzzFactor = 1;
 
 function assertFuzzyEq(expected, actual, fuzzFactor, message) {
   if (!message) {
@@ skipping 381 matching lines @@
         innerBounds: innerBounds
       }, callbackPass(function(win) {
         chrome.test.assertTrue(win != null);
         assertBoundsEq(innerBounds, win.innerBounds);
         assertBoundsConsistent(win);
         assertConstraintsUnspecified(win);
         win.close();
       }));
     },
 
+    // Regression for crbug.com/694248.
+    function testInnerBoundsNegativeZero() {
+      var innerBounds = {
+        left: -0,
+        top: 100,
+        width: 400,
+        height: 300,
+      };
+      chrome.app.window.create('test.html', {
+        innerBounds: innerBounds
+      }, callbackPass(function(win) {
+        chrome.test.assertTrue(win != null);
+        assertBoundsEq(innerBounds, win.innerBounds);
+        assertBoundsConsistent(win);
+        assertConstraintsUnspecified(win);
+        win.close();
+      }));
+    },
+
     function testOuterBoundsOnly() {
       var outerBounds = {
         left: 150,
         top: 100,
         width: 400,
         height: 300
       };
       chrome.app.window.create('test.html', {
         outerBounds: outerBounds
       }, callbackPass(function(win) {
@@ skipping 989 matching lines @@
       }));
     },
   ]);
 }
 
 chrome.app.runtime.onLaunched.addListener(function() {
   chrome.test.sendMessage('Launched', function(reply) {
     window[reply]();
   });
 });