Revert of Revert of make gm background colors 565 compatible

gm/clipdrawdraw.cpp

Index: gm/clipdrawdraw.cpp
diff --git a/gm/clipdrawdraw.cpp b/gm/clipdrawdraw.cpp
index 11561b29a66f07f66cdc18e2659702e4147e3ba9..965920105480f914ddf218ff8ca6e2bc980ed9f3 100644
--- a/gm/clipdrawdraw.cpp
+++ b/gm/clipdrawdraw.cpp
@@ -20,7 +20,7 @@
 // can leave 1 pixel wide remnants of the first rect.
 class ClipDrawDrawGM : public GM {
 public:
-    ClipDrawDrawGM() { this->setBGColor(0xFFCCCCCC); }
+    ClipDrawDrawGM() { this->setBGColor(sk_tool_utils::color_to_565(0xFFCCCCCC)); }
 
 protected:
     SkString onShortName() override { return SkString("clipdrawdraw"); }