explicitly include blurimagefilter include

Try explicitly adding
to fix the bookmaker nightly bot.

R=jcgregorio@google.com,caryclark@google.com

Docs-Preview: https://skia.org/?cl=137421
Bug: skia:6898
Change-Id: Iff27845e6872b885b8494e9fc236f4f05c10c301
Reviewed-on: https://skia-review.googlesource.com/137421
Reviewed-by: Cary Clark <caryclark@skia.org>
Reviewed-by: Joe Gregorio <jcgregorio@google.com>
Commit-Queue: Cary Clark <caryclark@skia.org>
Commit-Queue: Joe Gregorio <jcgregorio@google.com>
Auto-Submit: Cary Clark <caryclark@skia.org>
diff --git a/docs/SkCanvas_Reference.bmh b/docs/SkCanvas_Reference.bmh
index c026ffe..57125d7 100644
--- a/docs/SkCanvas_Reference.bmh
+++ b/docs/SkCanvas_Reference.bmh
@@ -1509,6 +1509,12 @@
 Canvas.
 ##
 #Height 128
+#Function
+###$
+#include "SkBlurImageFilter.h"
+$$$#
+##
+
 void draw(SkCanvas* canvas) {
     SkPaint paint, blur;
     blur.setImageFilter(SkBlurImageFilter::Make(3, 3, nullptr));
@@ -1558,6 +1564,12 @@
 Image_Filter blurs past edge of Layer so red rectangle is blurred on all sides.
 ##
 #Height 128
+#Function
+###$
+#include "SkBlurImageFilter.h"
+$$$#
+##
+
 void draw(SkCanvas* canvas) {
     SkPaint paint, blur;
     blur.setImageFilter(SkBlurImageFilter::Make(3, 3, nullptr));