WebCore:

WebCore:

        Reviewed by Chris

        * khtml/editing/htmlediting.cpp:
        (khtml::CompositeEditCommand::deleteSelection): Added new mergeBlocksAfterDelete flag to control
        whether content not in the block containing the start of the selection is moved to that block
        after the selection is deleted.
        (khtml::DeleteSelectionCommand::DeleteSelectionCommand): Ditto.
        (khtml::DeleteSelectionCommand::doApply): Ditto.
        (khtml::InputNewlineInQuotedContentCommand::InputNewlineInQuotedContentCommand): New command
        to handle the case of inserting a newline when in quoted content in Mail.
        (khtml::InputNewlineInQuotedContentCommand::~InputNewlineInQuotedContentCommand): Ditto.
        (khtml::InputNewlineInQuotedContentCommand::isMailBlockquote): Ditto.
        (khtml::InputNewlineInQuotedContentCommand::isLastVisiblePositionInBlockquote): Ditto.
        (khtml::InputNewlineInQuotedContentCommand::doApply): Ditto.
        (khtml::TypingCommand::insertNewlineInQuotedContent): Support for new newline command.
        (khtml::TypingCommand::doApply): Ditto.
        (khtml::TypingCommand::preservesTypingStyle): Ditto.
        * khtml/editing/htmlediting.h: Add new delclarations.
        (khtml::TypingCommand::): Ditto.
        * kwq/WebCoreBridge.h: Added new bridge method called from WebKit.
        * kwq/WebCoreBridge.mm:
        (-[WebCoreBridge insertNewlineInQuotedContent]): Ditto.

WebKit:

        Reviewed by Chris

        Added new SPI for Mail so it can get the behavior it needs when the user hits
        the return key with the selection in quoted content.

        * WebView.subproj/WebView.m
        * WebView.subproj/WebViewPrivate.h

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@7907 268f45cc-cd09-0410-ab3c-d52691b4dbfc