Bug 509274 - Make sizing reftests more robust

layout/reftests/svg/sizing/dynamic--inline-css-height.xhtml

@@ -30,13 +30,17 @@ html, body {
 
 function handle_load(e)
 {
-  setTimeout(resize_svg, 50); // allow some time for layout and rendering
+  document.addEventListener("MozReftestInvalidate", resize_svg, false);
+  // in case we're not gecko
+  setTimeout(resize_svg, 5000);
 }
 
 function resize_svg()
 {
   document.getElementById('svg').style.height = '100%';
-  setTimeout(notify_test_finished, 50); // allow some time for layout and rendering
+  document.addEventListener("MozReftestInvalidate", notify_test_finished, false);
+  // in case we're not gecko
+  setTimeout(notify_test_finished, 5000);
 }
 
 function notify_test_finished()

layout/reftests/svg/sizing/dynamic--inline-css-width.xhtml

@@ -30,13 +30,17 @@ html, body {
 
 function handle_load(e)
 {
-  setTimeout(resize_svg, 50); // allow some time for layout and rendering
+  document.addEventListener("MozReftestInvalidate", resize_svg, false);
+  // in case we're not gecko
+  setTimeout(resize_svg, 5000);
 }
 
 function resize_svg()
 {
   document.getElementById('svg').style.width = '100%';
-  setTimeout(notify_test_finished, 50); // allow some time for layout and rendering
+  document.addEventListener("MozReftestInvalidate", notify_test_finished, false);
+  // in case we're not gecko
+  setTimeout(notify_test_finished, 5000);
 }
 
 function notify_test_finished()

layout/reftests/svg/sizing/dynamic--inline-resize-cb-height.xhtml

@@ -31,14 +31,18 @@ html, body, div {
 
 function handle_load(e)
 {
-  setTimeout(resize_div, 50); // allow some time for layout and rendering
+  document.addEventListener("MozReftestInvalidate", resize_div, false);
+  // in case we're not gecko
+  setTimeout(resize_div, 5000);
 }
 
 function resize_div()
 {
   var XHTML_NS = 'http://www.w3.org/1999/xhtml';
   document.getElementsByTagNameNS(XHTML_NS, 'div').item(0).style.height = '100%';
-  setTimeout(notify_test_finished, 50); // allow some time for layout and rendering
+  document.addEventListener("MozReftestInvalidate", notify_test_finished, false);
+  // in case we're not gecko
+  setTimeout(notify_test_finished, 5000);
 }
 
 function notify_test_finished()

layout/reftests/svg/sizing/dynamic--inline-resize-cb-width.xhtml

@@ -31,14 +31,18 @@ html, body, div {
 
 function handle_load(e)
 {
-  setTimeout(resize_div, 50); // allow some time for layout and rendering
+  document.addEventListener("MozReftestInvalidate", resize_div, false);
+  // in case we're not gecko
+  setTimeout(resize_div, 5000);
 }
 
 function resize_div()
 {
   var XHTML_NS = 'http://www.w3.org/1999/xhtml';
   document.getElementsByTagNameNS(XHTML_NS, 'div').item(0).style.width = '100%';
-  setTimeout(notify_test_finished, 50); // allow some time for layout and rendering
+  document.addEventListener("MozReftestInvalidate", notify_test_finished, false);
+  // in case we're not gecko
+  setTimeout(notify_test_finished, 5000);
 }
 
 function notify_test_finished()

layout/reftests/svg/sizing/dynamic--inline-resize-window-height.xhtml

@@ -34,13 +34,17 @@ top.innerHeight /= 2;
 
 function handle_load(e)
 {
-  setTimeout(restore_height, 50); // allow some time for layout and rendering
+  document.addEventListener("MozReftestInvalidate", restore_height, false);
+  // in case we're not gecko
+  setTimeout(restore_height, 5000);
 }
 
 function restore_height()
 {
   top.innerHeight = initial_height;
-  setTimeout(notify_test_finished, 50); // allow some time for layout and rendering
+  document.addEventListener("MozReftestInvalidate", notify_test_finished, false);
+  // in case we're not gecko
+  setTimeout(notify_test_finished, 5000);
 }
 
 function notify_test_finished()

layout/reftests/svg/sizing/dynamic--inline-resize-window-width.xhtml

@@ -40,7 +40,9 @@ function handle_load(e)
 function restore_width()
 {
   top.innerWidth = initial_width;
-  setTimeout(notify_test_finished, 50); // allow some time for layout and rendering
+  document.addEventListener("MozReftestInvalidate", notify_test_finished, false);
+  // in case we're not gecko
+  setTimeout(notify_test_finished, 5000);
 }
 
 function notify_test_finished()

layout/reftests/svg/sizing/dynamic--object-svg-unloaded-a.svg

@@ -17,7 +17,9 @@ function handle_load(e)
 {
   embedding_element = e.originalTarget.ownerDocument.defaultView.frameElement;
 
-  setTimeout(load_new_page, 50); // allow some time for layout and rendering
+  document.addEventListener("MozReftestInvalidate", load_new_page, false);
+  // in case we're not gecko
+  setTimeout(load_new_page, 5000);
 }
 
 function load_new_page()

layout/reftests/svg/sizing/dynamic--object-svg-unloaded-b.xhtml

@@ -27,7 +27,9 @@ var embedding_element;
 function handle_load(e)
 {
   embedding_element = e.originalTarget.defaultView.frameElement;
-  setTimeout(notify_test_finished, 50); // allow some time for layout and rendering
+  document.addEventListener("MozReftestInvalidate", notify_test_finished, false);
+  // in case we're not gecko
+  setTimeout(notify_test_finished, 5000);
 }
 
 function notify_test_finished()