hwc: Add support for WFD(GPU) resolution switch.

-- Output buffer need to be reinterpreted as per dimensions
   set through Update_Buffer_Geometry.
-- Do not cache egl images during DRC as it leads to wrong
   stride calculation.

CRs-Fixed: 2595803
Change-Id: Id02153ba8dd7d7ab8861486dc10f9c2e8b515287
diff --git a/composer/gl_color_convert.h b/composer/gl_color_convert.h
index 3a083a8..bdac376 100644
--- a/composer/gl_color_convert.h
+++ b/composer/gl_color_convert.h
@@ -50,6 +50,7 @@
                    const shared_ptr<Fence> &src_acquire_fence,
                    const shared_ptr<Fence> &dst_acquire_fence,
                    shared_ptr<Fence> *release_fence) = 0;
+  virtual void Reset() = 0;
  protected:
   virtual ~GLColorConvert() { }
 };