diff -r 000000000000 -r 4f2f89ce4247 WebKit/mac/DefaultDelegates/WebDefaultPolicyDelegate.m
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebKit/mac/DefaultDelegates/WebDefaultPolicyDelegate.m	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2005, 2008 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer. 
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution. 
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#import "WebDefaultPolicyDelegate.h"
+
+#import "WebDataSource.h"
+#import "WebFrame.h"
+#import "WebPolicyDelegatePrivate.h"
+#import "WebViewInternal.h"
+#import <Foundation/NSURLConnection.h>
+#import <Foundation/NSURLRequest.h>
+#import <Foundation/NSURLResponse.h>
+#import <wtf/Assertions.h>
+
+@implementation WebDefaultPolicyDelegate
+
+static WebDefaultPolicyDelegate *sharedDelegate = nil;
+
+// Return a object with vanilla implementations of the protocol's methods
+// Note this feature relies on our default delegate being stateless
++ (WebDefaultPolicyDelegate *)sharedPolicyDelegate
+{
+    if (!sharedDelegate) {
+        sharedDelegate = [[WebDefaultPolicyDelegate alloc] init];
+    }
+    return sharedDelegate;
+}
+
+- (void)webView: (WebView *)wv unableToImplementPolicyWithError:(NSError *)error frame:(WebFrame *)frame
+{
+    LOG_ERROR("called unableToImplementPolicyWithError:%@ inFrame:%@", error, frame);
+}
+
+
+- (void)webView: (WebView *)wv decidePolicyForMIMEType:(NSString *)type
+                                               request:(NSURLRequest *)request
+                                                 frame:(WebFrame *)frame
+                                      decisionListener:(id <WebPolicyDecisionListener>)listener
+{
+    if ([[request URL] isFileURL]) {
+        BOOL isDirectory = NO;
+        BOOL exists = [[NSFileManager defaultManager] fileExistsAtPath:[[request URL] path] isDirectory:&isDirectory];
+
+        if (exists && !isDirectory && [wv _canShowMIMEType:type])
+            [listener use];
+        else
+            [listener ignore];
+    } else if ([wv _canShowMIMEType:type])
+        [listener use];
+    else
+        [listener ignore];
+}
+
+- (void)webView: (WebView *)wv decidePolicyForNavigationAction:(NSDictionary *)actionInformation 
+                                                       request:(NSURLRequest *)request
+                                                         frame:(WebFrame *)frame
+                                              decisionListener:(id <WebPolicyDecisionListener>)listener
+{
+    WebNavigationType navType = [[actionInformation objectForKey:WebActionNavigationTypeKey] intValue];
+
+    if ([WebView _canHandleRequest:request forMainFrame:frame == [wv mainFrame]]) {
+        [listener use];
+    } else if (navType == WebNavigationTypePlugInRequest) {
+        [listener use];
+    } else {
+        // A file URL shouldn't fall through to here, but if it did,
+        // it would be a security risk to open it.
+        if (![[request URL] isFileURL]) {
+            [[NSWorkspace sharedWorkspace] openURL:[request URL]];
+        }
+        [listener ignore];
+    }
+}
+
+- (void)webView: (WebView *)wv decidePolicyForNewWindowAction:(NSDictionary *)actionInformation 
+                                                      request:(NSURLRequest *)request
+                                                 newFrameName:(NSString *)frameName
+                                             decisionListener:(id <WebPolicyDecisionListener>)listener
+{
+    [listener use];
+}
+
+// Temporary SPI needed for <rdar://problem/3951283> can view pages from the back/forward cache that should be disallowed by Parental Controls
+- (BOOL)webView:(WebView *)webView shouldGoToHistoryItem:(WebHistoryItem *)item
+{
+    return YES;
+}
+
+@end
+