Merge changes from topic "RenderArea"
* changes:
Respect source crop when capturing layers.
libgui: add docs to geometry states and captureScreen
surfaceflinger: fix captureScreen for landscape LCM
surfaceflinger: improve RenderArea needsFiltering
surfaceflinger: respect install orientation in DisplayRenderArea
surfaceflinger: add install orientation to DisplayDevice
surfaceflinger: make mPrimaryDisplayOrientation static
surfaceflinger: clean up captureScreen
surfaceflinger: silence some RenderArea errors
surfaceflinger: fix race conditions in captureScreen
surfaceflinger: remove ISurfaceComposer.h from RenderArea
surfaceflinger: reorder width and height in RenderArea ctor
surfaceflinger: documents RenderArea