Added --deepColor option to SampleApp, triggers creation of a ten-bit/channel buffer on Windows.

include/views/SkOSWindow_Android.h

Index: include/views/SkOSWindow_Android.h
diff --git a/include/views/SkOSWindow_Android.h b/include/views/SkOSWindow_Android.h
index 74175bafd144faddefba3839630c7452e04dd7d6..94c75e1cc77b1cf13833d46ae9d9a192fb60d22d 100644
--- a/include/views/SkOSWindow_Android.h
+++ b/include/views/SkOSWindow_Android.h
@@ -28,7 +28,8 @@ public:
         kNativeGL_BackEndType,
     };
 
-    bool attach(SkBackEndTypes attachType, int msaaSampleCount, AttachmentInfo* info);
+    bool attach(SkBackEndTypes attachType, int msaaSampleCount, bool tenBitColor,
+                AttachmentInfo* info);
     void release();
     void present();
     bool makeFullscreen() { return true; }