Don't dispatch blur/focus events if the element's page is not focused.

LayoutTests/inspector-protocol/dom/dom-focus.html

Index: LayoutTests/inspector-protocol/dom/dom-focus.html
diff --git a/LayoutTests/inspector-protocol/dom/dom-focus.html b/LayoutTests/inspector-protocol/dom/dom-focus.html
index 834272c9a6231a08dc0783309701d48933477971..571d7835d165c83218590c3398a37d0981cc7ba9 100644
--- a/LayoutTests/inspector-protocol/dom/dom-focus.html
+++ b/LayoutTests/inspector-protocol/dom/dom-focus.html
@@ -3,16 +3,15 @@
 <script type="text/javascript" src="../../http/tests/inspector-protocol/resources/protocol-test.js"></script>
 <script>
 
-window.addEventListener("load", function() {
-    document.querySelector("#second").addEventListener("focus", onFocus);
-
-    function onFocus() {
-        log("focused");
-    }
-});
+function logActiveElement() {
+    var el = document.activeElement;
+    log(el ? (el.id || el.tagName) : "(none)");
+}
 
 function test()
 {
+    InspectorTest.sendCommand("Runtime.evaluate", { "expression": "logActiveElement()" });
+
     InspectorTest.sendCommand("DOM.getDocument", {}, onGotDocument);
 
     function onGotDocument(msg) {
@@ -38,6 +37,8 @@ function test()
     function onFocus(msg) {
         if (msg.error)
             InspectorTest.log(msg.error);
+
+        InspectorTest.sendCommand("Runtime.evaluate", { expression: 'logActiveElement()' });
         InspectorTest.completeTest();
     }
 }