Make test pages' content bigger than even larger screens, to cause scrolling more reliably.

Recognize that scroll bars aren't shown in tablet browsers, just like in phones.
Ignore tests that fail on Chrome for Android 40 due to the browser issues.

Author: sevaseva

javascript/atoms/test/scrolling_test.html

@@ -7,6 +7,9 @@
     goog.require('bot.action');
     goog.require('bot.dom');
     goog.require('goog.dom');
+    goog.require('goog.labs.userAgent.browser');
+    goog.require('goog.labs.userAgent.device');
+    goog.require('goog.labs.userAgent.platform');
     goog.require('goog.math.Coordinate');
     goog.require('goog.testing.ExpectedFailures');
     goog.require('goog.testing.jsunit');
@@ -38,8 +41,14 @@
     function testScrollsElementInToViewIfRequired() {
       bot.action.scrollIntoView(findElement({id: 'offscreen'}));
 
-      expectedFailures.expectFailureFor(goog.userAgent.product.ANDROID,
-        'Android doesn\'t currently provide scrolling information');
+      expectedFailures.expectFailureFor(
+        goog.userAgent.product.ANDROID ||
+            goog.labs.userAgent.browser.isChrome() &&
+            goog.labs.userAgent.platform.isAndroid() &&
+            goog.labs.userAgent.browser.isVersionOrHigher('40'),
+        'Android doesn\'t currently provide scrolling information. ' +
+        'Chrome for Android regressed in m40, apparently: ' +
+        'https://code.google.com/p/chromium/issues/detail?id=448404');
       expectedFailures.run(function() {
         assertNotEquals(0, getTopLevelParent().scrollLeft);
       });
@@ -151,10 +160,20 @@
 
       bot.action.scrollIntoView(element);
 
+      expectedFailures.expectFailureFor(
+        goog.userAgent.product.ANDROID ||
+            goog.labs.userAgent.browser.isChrome() &&
+            goog.labs.userAgent.platform.isAndroid() &&
+            goog.labs.userAgent.browser.isVersionOrHigher('40'),
+        'Android doesn\'t currently provide scrolling information. ' +
+        'Chrome for Android regressed in m40, apparently: ' +
+        'https://code.google.com/p/chromium/issues/detail?id=448404');
+      expectedFailures.run(function() {
+        assertNotEquals(0, getTopLevelParent().scrollLeft);
+      });
       expectedFailures.expectFailureFor(goog.userAgent.product.ANDROID,
         'Android doesn\'t currently provide scrolling information');
       expectedFailures.run(function() {
-        assertNotEquals(0, getTopLevelParent().scrollLeft);
         assertNotEquals(0, frameDocument.body.scrollLeft);
         assertNotEquals(0, top.scrollLeft);
         assertNotEquals(0, middle.scrollLeft);
@@ -190,11 +209,11 @@
 
       // If the scrollbar isn't taken into account, the minimum scrolling
       // needed would be 26 pixels, to bring the full pixel into view.
-      // This should fail on mobile since the scrollbars aren't shown.
+      // This should fail on mobile and tablet since the scrollbars aren't shown.
       // This should also fail on IE6 since scrolling only happens to
       // exactly the scrollbar width, which is 17 by default on Windows XP.
       expectedFailures.expectFailureFor(
-          goog.userAgent.MOBILE ||
+          goog.labs.userAgent.device.isMobile() || goog.labs.userAgent.device.isTablet() ||
           (goog.userAgent.IE && !goog.userAgent.isVersion(7)));
       expectedFailures.run(function() {
         assertTrue('horizontal scroll did not account for scrollbar',
@@ -205,7 +224,7 @@
     }
   </script>
   <div style="position: absolute; left: 150px; top: 100px; border: 2px yellow solid;"><a id="onscreen">Onscreen</a></div>
-  <div style="position: absolute; left: 3000px; border: 2px orange solid;"><a id="offscreen">Offscreen</a></div>
+  <div style="position: absolute; left: 8000px; border: 2px orange solid;"><a id="offscreen">Offscreen</a></div>
   <div style="overflow: hidden; width: 50px; height: 30px; border: 2px blue solid;" id="hidden-by-overflow-container">
     <a style="margin-left: 100px;" id="hidden-by-overflow">Hidden</a></div>
   </div>
@@ -235,7 +254,7 @@
   </div>
 
   <iframe src="testdata/scrolling_iframe.html" style="width: 200px; height: 100px;" id="scrollable-iframe"></iframe>
-  <div style="position: absolute; left: 3000px; top: 200px; border: 2px orange solid;">
+  <div style="position: absolute; left: 8000px; top: 200px; border: 2px orange solid;">
     <iframe src="testdata/scrolling_iframe.html" style="width: 200px; height: 100px;" id="offscreen-scrollable-iframe"></iframe>
   </div>
 

javascript/atoms/test/window_scroll_into_view_test.html

@@ -27,9 +27,7 @@
 
   function tearDownPage() {
     // So we can see the test results
-    window.setTimeout(function() {
-      window.scrollTo(0, 10000);
-    }, 0);
+    window.scrollTo(0, 0);
   }
 
   function testScrollToPositionAlreadyInViewDoesNotChangeScrollPosition() {
@@ -79,7 +77,7 @@
     }
   }
 </script>
-<div style="width:3000px;height:3000px"></div>
+<div style="width:8000px;height:8000px"></div>
 </body>
 </html>
 

javascript/atoms/test/window_scroll_test.html

@@ -44,7 +44,7 @@
     }
   </script>
 </head>
-<body style="width: 4000px; height: 4000px; padding: 0px;margin: 0px;">
+<body style="width: 8000px; height: 8000px; padding: 0px;margin: 0px;">
   Hello
 </body>
 </html>