Make the crashed web platform pointerevent tests pass

content/shell/browser/layout_test/blink_test_controller.cc

Index: content/shell/browser/layout_test/blink_test_controller.cc
diff --git a/content/shell/browser/layout_test/blink_test_controller.cc b/content/shell/browser/layout_test/blink_test_controller.cc
index 205c53ac03be3b05e016e6ba1ca858c6d2d76320..097b002e14fc3a26d9b0ede5dd1f3766582e3dac 100644
--- a/content/shell/browser/layout_test/blink_test_controller.cc
+++ b/content/shell/browser/layout_test/blink_test_controller.cc
@@ -59,6 +59,8 @@ namespace {
 
 const int kTestSVGWindowWidthDip = 480;
 const int kTestSVGWindowHeightDip = 360;
+const int kTestPointerEventWindowWidthDip = 1000;
+const int kTestPointerEventWindowHeightDip = 1200;
 
 }  // namespace
 
@@ -284,6 +286,11 @@ bool BlinkTestController::PrepareForLayoutTest(
   // The W3C SVG layout tests use a different size than the other layout tests.
   if (test_url.spec().find("W3C-SVG-1.1") != std::string::npos)
     initial_size_ = gfx::Size(kTestSVGWindowWidthDip, kTestSVGWindowHeightDip);
+  // The W3C pointer event layout tests use a different size than the other

[Rick Byers, 2016/07/12 13:54:08]

Ugh.  I know you're just repeating the pattern above, but this is pretty
magical. Can you not just have the test scroll down (eg. using
Element.scrollIntoView) as we had discussed?  Some tests may still exceed such a
height, really tests should be written not to assume any particular window size
(which is probably why we use a pretty small window size by default - better to
provoke tests more often).

[lanwei, 2016/07/12 14:26:54]

I agree. Navid, what do you think?

[lanwei, 2016/07/13 22:27:34]

scrollIntoView can only align either to the top or bottom of the view bound, but
we need to align with the left as well, so I use ScrollTo.

+  // layout tests.
+  if (test_url.spec().find("pointerevents") != std::string::npos)
+    initial_size_ = gfx::Size(kTestPointerEventWindowWidthDip,
+                              kTestPointerEventWindowHeightDip);
   if (!main_window_) {
     main_window_ = content::Shell::CreateNewWindow(
         browser_context,