Move updateLayout() call from RenderLayer to RenderView

LayoutTests/compositing/iframes/crash-mouse-event.html

Index: LayoutTests/compositing/iframes/crash-mouse-event.html
diff --git a/LayoutTests/compositing/iframes/crash-mouse-event.html b/LayoutTests/compositing/iframes/crash-mouse-event.html
new file mode 100644
index 0000000000000000000000000000000000000000..5b2edd82ebef3008ca2409341ef65956305982f0
--- /dev/null
+++ b/LayoutTests/compositing/iframes/crash-mouse-event.html
@@ -0,0 +1,18 @@
+<script>
+    if (window.testRunner) {
+        testRunner.dumpAsText(false);
+        testRunner.waitUntilDone();
+    }
+
+    function testDone()
+    {
+        if (window.eventSender) {
+            eventSender.mouseDown();
+        }
+        if (window.testRunner) {
+            testRunner.notifyDone();
+        }
+    }
+</script>
+<iframe src=resources/leave-compositing-subframe-click.html></iframe>
+<p>This test passes if it doesn't crash.</p>