Fix the logic that limits the number of frames in a page.

Source/core/html/HTMLFrameOwnerElement.cpp

Index: Source/core/html/HTMLFrameOwnerElement.cpp
diff --git a/Source/core/html/HTMLFrameOwnerElement.cpp b/Source/core/html/HTMLFrameOwnerElement.cpp
index 9da24ce2e260ce1bd67c4f76ba81e1da3940e3e0..fd4e0c14543cc1cc8908b7192cd181ef65428e3a 100644
--- a/Source/core/html/HTMLFrameOwnerElement.cpp
+++ b/Source/core/html/HTMLFrameOwnerElement.cpp
@@ -26,6 +26,7 @@
 #include "core/dom/AXObjectCache.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/events/Event.h"
+#include "core/frame/FrameHost.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/layout/LayoutPart.h"
@@ -257,6 +258,9 @@ bool HTMLFrameOwnerElement::loadOrRedirectSubframe(const KURL& url, const Atomic
     if (!SubframeLoadingDisabler::canLoadFrame(*this))
         return false;
 
+    if (document().frame()->host()->subframeCount() >= FrameHost::maxNumberOfFrames)
+        return false;
+
     return parentFrame->loader().client()->createFrame(FrameLoadRequest(&document(), url, "_self", CheckContentSecurityPolicy), frameName, this);
 }