Bind Window focus ability to the ExecutionContext instead of the process.

Source/web/tests/WebScopedWindowFocusAllowedIndicatorTest.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "public/web/WebScopedWindowFocusAllowedIndicator.h"
 
+#include "core/dom/Document.h"
 #include "core/page/WindowFocusAllowedIndicator.h"
+#include "public/web/WebDocument.h"
 #include <gtest/gtest.h>
 
-
 using namespace blink;
 
 namespace {
 
 TEST(WebScopedWindowFocusAllowedIndicatorTest, Basic)
 {
     EXPECT_FALSE(WindowFocusAllowedIndicator::windowFocusAllowed());
     {
         WebScopedWindowFocusAllowedIndicator indicator1;
         EXPECT_TRUE(WindowFocusAllowedIndicator::windowFocusAllowed());
         {
             WebScopedWindowFocusAllowedIndicator indicator2;
             EXPECT_TRUE(WindowFocusAllowedIndicator::windowFocusAllowed());
         }
         EXPECT_TRUE(WindowFocusAllowedIndicator::windowFocusAllowed());
     }
     EXPECT_FALSE(WindowFocusAllowedIndicator::windowFocusAllowed());
 }
 
+TEST(WebScopedWindowFocusAllowedIndicatorTest, WithDocument)
+{
+    RefPtrWillBePersistent<Document> document = Document::create();
+    WebDocument webDocument(document);
+
+    EXPECT_FALSE(document->isWindowFocusAllowed());
+    {
+        WebScopedWindowFocusAllowedIndicator indicator1(&webDocument);
+        EXPECT_TRUE(document->isWindowFocusAllowed());
+        {
+            WebScopedWindowFocusAllowedIndicator indicator2(&webDocument);
+            EXPECT_TRUE(document->isWindowFocusAllowed());
+        }
+        EXPECT_TRUE(document->isWindowFocusAllowed());
+    }
+    EXPECT_FALSE(document->isWindowFocusAllowed());
 }
+
+}