* Misc.subproj/WebError.m:

WebKit:

	- Moved plug-in error handling to WebResourceLoadDelegate
	- Report plug-in load failure, java load failure, and plug-in not found errors.
	- Added WebPluginError, subclass of WebError.
	- Attempted fix: 3090675 - Standalone WMP (Window Media Player) content crashes Alexander

        * English.lproj/Localizable.strings:
        * Misc.subproj/WebKitErrors.h:
        * Plugins.subproj/WebBaseNetscapePluginView.m:
        (-[WebBaseNetscapePluginView sendEvent:]): don't send event to null function
        * Plugins.subproj/WebNetscapePluginDocumentView.m:
        (-[WebNetscapePluginDocumentView setDataSource:]): report plug-in load failure
        * Plugins.subproj/WebNullPluginView.h:
        * Plugins.subproj/WebNullPluginView.m: take a WebPluginError
        (-[WebNullPluginView dealloc]):
        (-[WebNullPluginView viewDidMoveToWindow]):
        * Plugins.subproj/WebPluginError.h: Added.
        * Plugins.subproj/WebPluginError.m: Added.
        (-[WebPluginErrorPrivate dealloc]):
        (-[WebPluginError dealloc]):
        (-[WebPluginError pluginPageURL]):
        (-[WebPluginError pluginName]):
        (-[WebPluginError MIMEType]):
        * WebCoreSupport.subproj/WebBridge.m:
        (-[WebBridge viewForPluginWithURL:attributes:baseURL:MIMEType:]): report plug-in load failure
        (-[WebBridge viewForJavaAppletWithFrame:attributes:baseURL:]): report plug-in load failure
        * WebKit.pbproj/project.pbxproj:
        * WebView.subproj/WebController.m:
        (-[WebResourceLoadDelegate pluginFailedWithError:dataSource:]): added, does nothing
        * WebView.subproj/WebControllerPolicyDelegate.h:
        * WebView.subproj/WebResourceLoadDelegate.h:
        * WebView.subproj/WebView.m:
        (+[WebView initialize]): added new error strings

WebBrowser:

	- Moved plug-in error handling to WebResourceLoadDelegate

        * BrowserWebController.m:
        * English.lproj/Localizable.strings:
        * LoadProgressMonitor.m:
        (-[LoadProgressMonitor pluginNotFoundSheetEnded:returnCode:contextInfo:]):
        (-[LoadProgressMonitor pluginFailedWithError:dataSource:]): display special sheets for new errors.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@2532 268f45cc-cd09-0410-ab3c-d52691b4dbfc