Add rappor logging for Device Orientation on security origins different from the main frame

third_party/WebKit/Source/core/frame/DeviceSingleWindowEventController.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/frame/DeviceSingleWindowEventController.h"
 
 #include "core/dom/Document.h"
 #include "core/events/Event.h"
 #include "core/page/Page.h"
 
@@ skipping 50 matching lines @@
   stopUpdating();
   m_hasEventListener = false;
 }
 
 void DeviceSingleWindowEventController::didRemoveAllEventListeners(
     LocalDOMWindow*) {
   stopUpdating();
   m_hasEventListener = false;
 }
 
+bool DeviceSingleWindowEventController::isSameSecurityOriginAsMainFrame()
+    const {
+  if (!document().frame() || !document().page())
+    return false;
+
+  if (document().frame()->isMainFrame())
+    return true;
+
+  SecurityOrigin* mainSecurityOrigin =
+      document().page()->mainFrame()->securityContext()->getSecurityOrigin();
+
+  if (mainSecurityOrigin &&
+      document().getSecurityOrigin()->canAccess(mainSecurityOrigin))
+    return true;

[Rick Byers, 2017/02/17 22:21:28]

Looks like this logic is the same as in
Deprecation::countDeprecationCrossOriginIframe - good.  Ultimately (eg. if/when
we move to generating a deprecation warning for this) we may want to share a bit
more code, but not worth worrying about here.

[timvolodine, 2017/02/28 15:48:15]

Yes, acknowledged.

+
+  return false;
+}
+
 DEFINE_TRACE(DeviceSingleWindowEventController) {
   visitor->trace(m_document);
   PlatformEventController::trace(visitor);
 }
 
 }  // namespace blink