WebKit:

WebKit:

        Reviewed by Darin.

	<rdar://problem/4051145> The QuickTime Cocoa plug-in needs an SPI that it can call to check for URL policy

        * Plugins.subproj/WebPluginContainerCheck.h: Added.
        * Plugins.subproj/WebPluginContainerCheck.m: Added this new helper class to encapsulate
	an async plugin navigation check.
        (+[WebPluginContainerCheck checkWithRequest:target:resultObject:selector:controller:]): Convenience allocator that gives autoreleased value.
        (-[WebPluginContainerCheck initWithRequest:target:resultObject:selector:controller:]): Initializer.
        (-[WebPluginContainerCheck finalize]): Just assert that we're done, it would
	be bad to deallocate this object while request is still outstanding.
        (-[WebPluginContainerCheck dealloc]): Ditto.
        (-[WebPluginContainerCheck _continueWithPolicy:]): Method to continue after async
	policy check.
        (-[WebPluginContainerCheck _isDisallowedFileLoad]): Do "file: URL from remote content"
	check.
        (-[WebPluginContainerCheck _actionInformationWithURL:]): Helper to make action
	dictionary.
        (-[WebPluginContainerCheck _askPolicyDelegate]): Call policy delegate to let
	the app decide if this load is allowed.
        (-[WebPluginContainerCheck start]): Start the check.
        (-[WebPluginContainerCheck cancel]): Cancel a check in progress.
        * Plugins.subproj/WebPluginController.h:
        * Plugins.subproj/WebPluginController.m:
        (-[WebPluginController initWithDocumentView:]): Initialize new _checksInProgress field.
        (-[WebPluginController _webPluginContainerCancelCheckIfAllowedToLoadRequest:]): Implement
	this new SPI method.
        (-[WebPluginController _cancelOutstandingChecks]): New helper to make sure to cancel
	all outstanding requests when destroying all plugins.
        (-[WebPluginController destroyAllPlugins]): Call above helper.
        (-[WebPluginController _webPluginContainerCheckIfAllowedToLoadRequest:inFrame:resultObject:selector:]): Implement this new plug-in SPI method.
        (-[WebPluginController bridge]): New helper method.
        (-[WebPluginController webView]): New helper method.
        * WebView.subproj/WebPolicyDelegatePrivate.h: Add new navigation
	type WebNavigationTypePlugInRequest.
        * WebKit.pbproj/project.pbxproj: Add new files.
        * WebView.subproj/WebDefaultPolicyDelegate.m:
        (-[WebDefaultPolicyDelegate webView:decidePolicyForNavigationAction:request:frame:decisionListener:]): Don't open externally on a plug-in request.

WebBrowser:

        Reviewed by Darin.

	<rdar://problem/4051145> The QuickTime Cocoa plug-in needs an SPI that it can call to check for URL policy

	* BrowserWebController.m:
        (-[BrowserWebView decidePolicyForAction:request:frame:newFrameName:decisionListener:]): In
	case this is a plugin load request, accept it early to avoid throwing up UI or
	causing external loads.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@8964 268f45cc-cd09-0410-ab3c-d52691b4dbfc