Add schedulePageBlock() to navigation scheduler

Source/core/loader/NavigationScheduler.cpp

Index: Source/core/loader/NavigationScheduler.cpp
diff --git a/Source/core/loader/NavigationScheduler.cpp b/Source/core/loader/NavigationScheduler.cpp
index ffe1447b40653488a9a63e912ce51b02101595c2..352b1f1d6cbe10b97c3457229acf243a3a0b93d1 100644
--- a/Source/core/loader/NavigationScheduler.cpp
+++ b/Source/core/loader/NavigationScheduler.cpp
@@ -320,6 +320,12 @@ void NavigationScheduler::scheduleLocationChange(Document* originDocument, const
     schedule(adoptPtr(new ScheduledLocationChange(originDocument, url, referrer, lockBackForwardList)));
 }
 
+void NavigationScheduler::schedulePageBlock(Document* originDocument, const Referrer& referrer)
+{
+    ASSERT(m_frame->page());
+    schedule(adoptPtr(new ScheduledLocationChange(originDocument, "data:,Blocked", referrer, false)));

[Nate Chapin, 2014/05/30 23:04:36]

I'm a little hazy on the unique origin rules, will "date:,Blocked" meet those
rules?

+}
+
 void NavigationScheduler::scheduleFormSubmission(PassRefPtr<FormSubmission> submission)
 {
     ASSERT(m_frame->page());