Tweak distance field path renderer behavior in gamma-correct mode to match

recent changes to text rendering.

Uses linear coverage falloff. Produces results that are perceptually more
similar to L32 (raster and gpu). Smoothstep + sRGB was too soft.

Plumb the gamma-correctness via DrawPathArgs, which also paves the way for
other path rendering implementations to easily make decisions about rendering
technique based on that flag.

Fix a few typos and formatting issues from my most recent change.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1889453002

Review URL: https://codereview.chromium.org/1889453002

1 files changed, 2 insertions, 2 deletions

diff --git a/gm/surface.cpp b/gm/surface.cpp
index 503b887f1f..6b79479492 100644
--- a/gm/surface.cpp
+++ b/gm/surface.cpp
@@ -80,7 +80,7 @@ protected:
         const SkImageInfo info = SkImageInfo::MakeN32(W, H, kOpaque_SkAlphaType,
                                                       canvas->imageInfo().profileType());
         SkSurfaceProps canvasProps(SkSurfaceProps::kLegacyFontHost_InitType);
-        bool gammaCorrrect = canvas->getProps(&canvasProps) && canvasProps.isGammaCorrect();
+        bool gammaCorrect = canvas->getProps(&canvasProps) && canvasProps.isGammaCorrect();
 
         const struct {
             SkPixelGeometry fGeo;
@@ -99,7 +99,7 @@ protected:
                 SkScalar y = 0;
                 for (size_t i = 0; i < SK_ARRAY_COUNT(rec); ++i) {
                     auto surface(make_surface(ctx, info, rec[i].fGeo, disallowAA, disallowDither,
-                                              gammaCorrrect));
+                                              gammaCorrect));
                     test_draw(surface->getCanvas(), rec[i].fLabel);
                     surface->draw(canvas, x, y, nullptr);
                     y += H;