[win32] Improve GC init for ImageGcDrawer#2110

HeikoKlare merged 1 commit intoeclipse-platform:mastereclipse-platform/eclipse.platform.swt:masterfrom

vi-eclipse:win32-improve-image-gcdrawer-initializationvi-eclipse/eclipse.platform.swt:win32-improve-image-gcdrawer-initializationCopy head branch name to clipboard