Remove unneeded SkColorSpace constructor
TBR=reed@google.com
BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4140

Change-Id: Ib1c477b6b56a100ea449ffa20bdf18041c044a78
Reviewed-on: https://skia-review.googlesource.com/4140
Reviewed-by: Matt Sarett <msarett@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Matt Sarett <msarett@google.com>
diff --git a/bench/ColorCodecBench.cpp b/bench/ColorCodecBench.cpp
index 11343dc..b0ae7e3 100644
--- a/bench/ColorCodecBench.cpp
+++ b/bench/ColorCodecBench.cpp
@@ -175,10 +175,13 @@
     }
 
     if (FLAGS_nonstd) {
-        float gammas[3] = { 1.8f, 2.0f, 2.5f, };
+        SkColorSpaceTransferFn gamma;
+        gamma.fA = 1.0f;
+        gamma.fB = gamma.fC = gamma.fD = gamma.fE = gamma.fF = 0.0f;
+        gamma.fG = 4.0f;
         SkMatrix44 matrix = SkMatrix44(SkMatrix44::kUninitialized_Constructor);
         matrix.set3x3(0.30f, 0.31f, 0.28f, 0.32f, 0.33f, 0.29f, 0.27f, 0.30f, 0.30f);
-        fDstSpace = SkColorSpace::MakeRGB(gammas, matrix);
+        fDstSpace = SkColorSpace::MakeRGB(gamma, matrix);
     }
 
     fDstInfo = fDstInfo.makeColorSpace(fDstSpace);