Revert 138962

Source/WebCore/platform/network/cf/ResourceHandleCFNet.cpp

Index: Source/WebCore/platform/network/cf/ResourceHandleCFNet.cpp
===================================================================
--- Source/WebCore/platform/network/cf/ResourceHandleCFNet.cpp	(revision 141117)
+++ Source/WebCore/platform/network/cf/ResourceHandleCFNet.cpp	(working copy)
@@ -808,6 +808,23 @@
     return false;
 }
 
+bool ResourceHandle::willLoadFromCache(ResourceRequest& request, Frame*)
+{
+    request.setCachePolicy(ReturnCacheDataDontLoad);
+    
+    CFURLResponseRef cfResponse = 0;
+    CFErrorRef cfError = 0;
+    RetainPtr<CFDataRef> data = adoptCF(CFURLConnectionSendSynchronousRequest(request.cfURLRequest(), &cfResponse, &cfError, request.timeoutInterval()));
+    bool cached = cfResponse && !cfError;
+
+    if (cfError)
+        CFRelease(cfError);
+    if (cfResponse)
+        CFRelease(cfResponse);
+
+    return cached;
+}
+
 #if PLATFORM(MAC)
 void ResourceHandle::schedule(SchedulePair* pair)
 {