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

Source/web/tests/WebFrameTest.cpp

Index: Source/web/tests/WebFrameTest.cpp
diff --git a/Source/web/tests/WebFrameTest.cpp b/Source/web/tests/WebFrameTest.cpp
index bb621074e81eb74aae66bd11fb54563dd89f813e..6bb5402503e4e8b5692b19eb22999f1dcde2d02b 100644
--- a/Source/web/tests/WebFrameTest.cpp
+++ b/Source/web/tests/WebFrameTest.cpp
@@ -7733,4 +7733,12 @@ TEST_F(WebFrameTest, OrientationFrameDetach)
     webViewImpl->mainFrameImpl()->sendOrientationChangeEvent();
 }
 
+TEST_F(WebFrameTest, MaxFramesDetach)
+{
+    registerMockedHttpURLLoad("max-frames-detach.html");
+    FrameTestHelpers::WebViewHelper webViewHelper;
+    WebViewImpl* webViewImpl = webViewHelper.initializeAndLoad(m_baseURL + "max-frames-detach.html", true);
+    webViewImpl->mainFrameImpl()->collectGarbage();
+}
+
 } // namespace blink