Reviewed by Adele.

        - convert WebLoader and its 3 subclasses to C++ (this time with a leak fixed)

        Renamed WebLoader to WebCore::WebResourceLoader (should be ResourceLoader, but
        there's currently another class with that name).
        Renamed WebMainResourceLoader to WebCore::MainResourceLoader.
        Renamed WebSubresourceLoader to WebCore::SubresourceLoader.
        Renamed WebNetscapePlugInStreamLoader to WebCore::NetscapePlugInStreamLoader.

        Converted the classes to C++ and added Objective-C delegates to forward from
        API that still requires Objective-C.

        Did not yet rename the source files.

        * WebCore.exp: Removed WebLoader, WebNetscapePlugInStreamLoader, and WebSubresourceLoader
        classes. Added 5 functions from the WebResourceLoader and NetscapePlugInStreamLoader
        classes.

        * WebCore.xcodeproj/project.pbxproj: Made RetainPtr.h a private header instead of project.

        * platform/cf/RetainPtr.h: Put into the WebCore namespace rather than the WTF namespace.

        * loader/mac/WebLoader.h:
        * loader/mac/WebLoader.mm:
        * loader/mac/WebMainResourceLoader.h:
        * loader/mac/WebMainResourceLoader.mm:
        * loader/mac/WebNetscapePlugInStreamLoader.h:
        * loader/mac/WebNetscapePlugInStreamLoader.mm:
        * loader/mac/WebSubresourceLoader.h:
        * loader/mac/WebSubresourceLoader.mm:
        Translate to C++.

        * bridge/mac/WebCoreFrameBridge.mm:
        (-[WebCoreFrameBridge startLoadingResource:withMethod:URL:customHeaders:]):
        (-[WebCoreFrameBridge startLoadingResource:withMethod:URL:customHeaders:postData:]):
        * loader/mac/WebFrameLoader.h:
        * loader/mac/WebFrameLoader.mm:
        (isCaseInsensitiveEqual):
        (isBackForwardLoadType):
        (-[WebFrameLoader dealloc]):
        (-[WebFrameLoader addPlugInStreamLoader:]):
        (-[WebFrameLoader removePlugInStreamLoader:]):
        (-[WebFrameLoader setDefersCallbacks:]):
        (-[WebFrameLoader stopLoadingPlugIns]):
        (-[WebFrameLoader isLoadingMainResource]):
        (-[WebFrameLoader isLoadingSubresources]):
        (-[WebFrameLoader isLoadingPlugIns]):
        (-[WebFrameLoader stopLoadingSubresources]):
        (-[WebFrameLoader addSubresourceLoader:]):
        (-[WebFrameLoader removeSubresourceLoader:]):
        (-[WebFrameLoader mainResourceData]):
        (-[WebFrameLoader releaseMainResourceLoader]):
        (-[WebFrameLoader cancelMainResourceLoad]):
        (-[WebFrameLoader startLoadingMainResourceWithRequest:identifier:]):
        (-[WebFrameLoader stopLoadingWithError:]):
        (-[WebFrameLoader willUseArchiveForRequest:originalURL:loader:]):
        (-[WebFrameLoader archiveLoadPendingForLoader:]):
        (-[WebFrameLoader cancelPendingArchiveLoadForLoader:]):
        * loader/mac/WebFrameLoaderClient.h:
        Call the new C++ API.

WebKit:

        Reviewed by Adele.

        - convert WebLoader and its 3 subclasses to C++

        * Plugins/WebNetscapePluginStream.h:
        * Plugins/WebNetscapePluginStream.m:
        (-[WebNetscapePluginStream dealloc]):
        (-[WebNetscapePluginStream finalize]):
        (-[WebNetscapePluginStream start]):
        (-[WebNetscapePluginStream cancelLoadWithError:]):
        (-[WebNetscapePluginStream stop]):
        * WebCoreSupport/WebFrameBridge.m:
        (-[WebFrameBridge canRunModalNow]):
        * WebView/WebFrame.m:
        (-[WebFramePrivate dealloc]):
        (-[WebFramePrivate finalize]):
        (frame): Changed from uppercase to lowercase so that it won't conflict
        with the WebCore class named Frame.
        (-[WebFrame _firstChildFrame]):
        (-[WebFrame _lastChildFrame]):
        (-[WebFrame _previousSiblingFrame]):
        (-[WebFrame _nextSiblingFrame]):
        (-[WebFrame _traverseNextFrameStayWithin:]):
        (-[WebFrame _immediateChildFrameNamed:]):
        (-[WebFrame _nextFrameWithWrap:]):
        (-[WebFrame _previousFrameWithWrap:]):
        (-[WebFrame findFrameNamed:]):
        (-[WebFrame parentFrame]):
        (-[WebFrame _dispatchSourceFrame:willSubmitForm:withValues:submissionDecider:]):
        (-[WebFrame _deliverArchivedResourcesAfterDelay]):
        (-[WebFrame _willUseArchiveForRequest:originalURL:loader:]):
        (-[WebFrame _archiveLoadPendingForLoader:]):
        (-[WebFrame _cancelPendingArchiveLoadForLoader:]):
        (-[WebFrame _clearArchivedResources]):
        (-[WebFrame _deliverArchivedResources]):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@17206 268f45cc-cd09-0410-ab3c-d52691b4dbfc