Add a flag for when a navigation is ignored (e.g. by shouldOverrideUrl).

Source/platform/network/ResourceError.cpp

Index: Source/platform/network/ResourceError.cpp
diff --git a/Source/platform/network/ResourceError.cpp b/Source/platform/network/ResourceError.cpp
index a9d9e2f6178291dff27789cd9d954e159ac27ecd..4e8efdbe582d7cebf8db8e6eca6e9df3e58985bd 100644
--- a/Source/platform/network/ResourceError.cpp
+++ b/Source/platform/network/ResourceError.cpp
@@ -60,6 +60,7 @@ ResourceError ResourceError::copy() const
     errorCopy.m_isAccessCheck = m_isAccessCheck;
     errorCopy.m_isTimeout = m_isTimeout;
     errorCopy.m_staleCopyInCache = m_staleCopyInCache;
+    errorCopy.m_wasIgnoredByHandler = m_wasIgnoredByHandler;
     return errorCopy;
 }
 
@@ -95,6 +96,9 @@ bool ResourceError::compare(const ResourceError& a, const ResourceError& b)
     if (a.staleCopyInCache() != b.staleCopyInCache())
         return false;
 
+    if (a.wasIgnoredByHandler() != b.wasIgnoredByHandler())
+        return false;
+
     return true;
 }