Blackberry: Implement QVideoRendererControl for QMediaPlayer backend

If the application is not supposed to play back DRM secured media,
we grab the pixel data from the native mmrenderer window now
and make them available to the QAbstractVideoSurface of the
QVideoRendererControl. This allows the usage of all transformations
on video output inside QtQuick.

Change-Id: I73d05404b1ac9c5f74a234d9393b981a6fbcb317
Reviewed-by: Thomas McGuire <thomas.mcguire@kdab.com>

src/plugins/blackberry/mediaplayer/mediaplayer.pri

@@ -5,6 +5,7 @@ HEADERS += \
     $$PWD/bbmediaplayerservice.h \
     $$PWD/bbmetadata.h \
     $$PWD/bbmetadatareadercontrol.h \
+    $$PWD/bbplayervideorenderercontrol.h \
     $$PWD/bbutil.h \
     $$PWD/bbvideowindowcontrol.h
 
@@ -13,6 +14,7 @@ SOURCES += \
     $$PWD/bbmediaplayerservice.cpp \
     $$PWD/bbmetadata.cpp \
     $$PWD/bbmetadatareadercontrol.cpp \
+    $$PWD/bbplayervideorenderercontrol.cpp \
     $$PWD/bbutil.cpp \
     $$PWD/bbvideowindowcontrol.cpp