Fix SkScalar conversion warning error.

src/images/SkImageDecoder_libjpeg.cpp

Index: src/images/SkImageDecoder_libjpeg.cpp
diff --git a/src/images/SkImageDecoder_libjpeg.cpp b/src/images/SkImageDecoder_libjpeg.cpp
index 7652249f5eb0a0bb0f30f94bcb78b3af2fdf6bba..3e34a277fd0494a46dfafc7fa8a2364f889c2915 100644
--- a/src/images/SkImageDecoder_libjpeg.cpp
+++ b/src/images/SkImageDecoder_libjpeg.cpp
@@ -474,9 +474,9 @@ static void adjust_out_color_space_and_dither(jpeg_decompress_struct* cinfo,
    Used when decoding fails partway through reading scanlines to fill
    remaining lines. */
 static void fill_below_level(int y, SkBitmap* bitmap) {
-    SkRect rect = SkRect::MakeLTRB(0, y, bitmap->width(), bitmap->height());
+    SkIRect rect = SkIRect::MakeLTRB(0, y, bitmap->width(), bitmap->height());
     SkCanvas canvas(*bitmap);
-    canvas.clipRect(rect);
+    canvas.clipRect(SkRect::Make(rect));
     canvas.drawColor(SK_ColorWHITE);
 }