Add TextureView list to dumpsys gfxinfo

Test: dumpsys gfxinfo looking at a textureview
Change-Id: I57bffad773ef62bfd96998341c5f050c6a87ebde
diff --git a/libs/hwui/renderthread/CanvasContext.h b/libs/hwui/renderthread/CanvasContext.h
index 3f02674..241f8dd 100644
--- a/libs/hwui/renderthread/CanvasContext.h
+++ b/libs/hwui/renderthread/CanvasContext.h
@@ -238,6 +238,8 @@
 
     static bool shouldDither();
 
+    void visitAllRenderNodes(std::function<void(const RenderNode&)>) const;
+
 private:
     CanvasContext(RenderThread& thread, bool translucent, RenderNode* rootRenderNode,
                   IContextFactory* contextFactory, std::unique_ptr<IRenderPipeline> renderPipeline,