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akling@apple.com authored
<http://webkit.org/b/116185> Source/WebCore: Reviewed by Anders Carlsson. A Page's chrome() can never be null. Change Page::chrome() to return a reference to reflect this. Also, make Page::m_chrome a const member variable so nobody will accidentally set it to null. Source/WebKit/blackberry: Reviewed by Anders Carlsson. Source/WebKit/efl: Reviewed by Anders Carlsson. Source/WebKit/gtk: Reviewed by Anders Carlsson. Source/WebKit/mac: Reviewed by Anders Carlsson. Source/WebKit/qt: Reviewed by Anders Carlsson. Source/WebKit/win: Reviewed by Anders Carlsson. Source/WebKit2: Reviewed by Anders Carlsson. git-svn-id: http://svn.webkit.org/repository/webkit/trunk@150214 268f45cc-cd09-0410-ab3c-d52691b4dbfc
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