Navigation transitions: Added notifyTransitionsShown and setupTransitionsView to WebLocalFrame

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 1206 matching lines @@
 
 void WebLocalFrameImpl::extendSelectionAndDelete(int before, int after)
 {
     if (WebPlugin* plugin = focusedPluginIfInputMethodSupported()) {
         plugin->extendSelectionAndDelete(before, after);
         return;
     }
     frame()->inputMethodController().extendSelectionAndDelete(before, after);
 }
 
+void WebLocalFrameImpl::beginExitTransition(const WebString& cssSelector)
+{
+    frame()->document()->hideTransitionElements(cssSelector);
+    frame()->loader().closeURL();

[abarth-chromium, 2014/07/29 17:07:15]

Will this cause us to dispatch the unload event twice?  It looks like
FrameLoader::detachFromParent also calls closeURL, and closeURL will call
dispatchUnloadEvents...

[oystein (OOO til 10th of July), 2014/07/30 22:11:51]

After discussing this with Simon, it turns out this call was something left over
from an older iteration of this and was actually no longer needed. Removed this
now, which should simplify this quite a lot and no longer introduce any
inconsistency with the unload handlers.

+    frame()->document()->styleEngine()->enableExitTransitionStylesheets();

[abarth-chromium, 2014/07/29 17:07:15]

It seems like the document is in a strange state at this point.  We've already
fired the unload event, but the document's scripts can continue to execute. 
Normally the unload even is the last thing that happens to a page before it gets
ripped out of the view...

How does this work with onbeforeunload?  Is that event fired before or after the
unload event?

Can you add tests to cover all of these cases?

+}
+
+void WebLocalFrameImpl::setIsTransitionDocument()
+{
+    // This ensures the transition UA stylesheet gets applied.
+    frame()->document()->setIsTransitionDocument();

[abarth-chromium, 2014/07/29 17:07:15]

Given that this function operates exclusively on the document, it should be an
API on WebDocument.

[oystein (OOO til 10th of July), 2014/07/30 22:11:51]

Done.

+}
+
+void WebLocalFrameImpl::navigateToSandboxedMarkup(const WebData& markup)
+{
+    ASSERT(document().securityOrigin().isUnique());
+    frame()->document()->enforceSandboxFlags(SandboxAll);
+
+    loadHTMLString(markup, document().url(), WebURL(), true);
+}
+
 void WebLocalFrameImpl::setCaretVisible(bool visible)
 {
     frame()->selection().setCaretVisible(visible);
 }
 
 VisiblePosition WebLocalFrameImpl::visiblePositionForWindowPoint(const WebPoint& point)
 {
     // FIXME(bokan): crbug.com/371902 - These scale/pinch transforms shouldn't
     // be ad hoc and explicit.
     PinchViewport& pinchViewport = frame()->page()->frameHost().pinchViewport();
@@ skipping 622 matching lines @@
 
 void WebLocalFrameImpl::invalidateAll() const
 {
     ASSERT(frame() && frame()->view());
     FrameView* view = frame()->view();
     view->invalidateRect(view->frameRect());
     invalidateScrollbar();
 }
 
 } // namespace blink