Adjust sizes of material design shadows based on Sebastien's feedback.

ui/gfx/skia_util.h

Index: ui/gfx/skia_util.h
diff --git a/ui/gfx/skia_util.h b/ui/gfx/skia_util.h
index 30751b783afd791b81c35471590993e31f9c767f..fbd1909c06831346079d252c2e673f2d5b6d6d6b 100644
--- a/ui/gfx/skia_util.h
+++ b/ui/gfx/skia_util.h
@@ -75,9 +75,17 @@ GFX_EXPORT sk_sp<SkShader> CreateGradientShader(int start_point,
 // Creates a draw looper to generate |shadows|. The caller owns the draw looper.
 // NULL is returned if |shadows| is empty since no draw looper is needed in
 // this case.
+// DEPRECATED: See below. TODO(estade): remove this: crbug.com/624175
 GFX_EXPORT sk_sp<SkDrawLooper> CreateShadowDrawLooper(
     const std::vector<ShadowValue>& shadows);
 
+// Creates a draw looper to generate |shadows|. This creates a looper with the
+// correct amount of blur. Callers of the existing CreateShadowDrawLooper may
+// rely on the wrong amount of blur being applied but new code should use this
+// function.
+GFX_EXPORT sk_sp<SkDrawLooper> CreateShadowDrawLooperCorrectBlur(
+    const std::vector<ShadowValue>& shadows);
+
 // Returns true if the two bitmaps contain the same pixels.
 GFX_EXPORT bool BitmapsAreEqual(const SkBitmap& bitmap1,
                                 const SkBitmap& bitmap2);