Add hooks for capturing meaningful text info, gently.

Source/web/WebLocalFrameImpl.cpp

 /*
  * Copyright (C) 2009 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 2098 matching lines @@
     return frame()->loader().stateMachine()->isDisplayingInitialEmptyDocument() || frame()->loader().provisionalDocumentLoader() || !frame()->document()->loadEventFinished();
 }
 
 bool WebLocalFrameImpl::isResourceLoadInProgress() const
 {
     if (!frame() || !frame()->document())
         return false;
     return frame()->document()->fetcher()->requestCount();
 }
 
+bool WebLocalFrameImpl::isRedirectOrLocationChangePending() const
+{
+    return frame() && (frame()->navigationScheduler().isRedirect() || frame()->navigationScheduler().locationChangePending());

[Nate Chapin, 2015/08/21 22:38:31]

Is there a reason this has to be picky about what kind of navigation is being
scheduled? I'm not thrilled with adding more locationChangePending() callers.

[dglazkov, 2015/08/21 22:54:53]

Good question. For the specific user of the API, it doesn't seem very
interesting. Should I just change it to isNavigationScheduled?

[Nate Chapin, 2015/08/21 23:00:29]

I think that's preferable, yeah.

+}
+
 void WebLocalFrameImpl::setCommittedFirstRealLoad()
 {
     ASSERT(frame());
     ensureFrameLoaderHasCommitted(frame()->loader());
 }
 
 void WebLocalFrameImpl::sendOrientationChangeEvent()
 {
     if (!frame())
         return;
@@ skipping 77 matching lines @@
 }
 
 WebSandboxFlags WebLocalFrameImpl::effectiveSandboxFlags() const
 {
     if (!frame())
         return WebSandboxFlags::None;
     return static_cast<WebSandboxFlags>(frame()->loader().effectiveSandboxFlags());
 }
 
 } // namespace blink