Rename lots of things from 'sRGB' to 'GammaCorrect', where appropriate

gm/dftext.cpp

Index: gm/dftext.cpp
diff --git a/gm/dftext.cpp b/gm/dftext.cpp
index c66064a8d4c930f4f4f6eb096333e5948dd61bdc..e6aba0894ed1b59693e423a07eb89046b8367be3 100644
--- a/gm/dftext.cpp
+++ b/gm/dftext.cpp
@@ -51,9 +51,9 @@ protected:
         SkImageInfo info = SkImageInfo::MakeN32Premul(onISize(),
                                                       inputCanvas->imageInfo().profileType());
         SkSurfaceProps canvasProps(SkSurfaceProps::kLegacyFontHost_InitType);
-        uint32_t allowSRGBInputs = inputCanvas->getProps(&canvasProps)
-            ? canvasProps.flags() & SkSurfaceProps::kAllowSRGBInputs_Flag : 0;
-        SkSurfaceProps props(SkSurfaceProps::kUseDeviceIndependentFonts_Flag | allowSRGBInputs,
+        uint32_t gammaCorrect = inputCanvas->getProps(&canvasProps)
+            ? canvasProps.flags() & SkSurfaceProps::kGammaCorrect_Flag : 0;
+        SkSurfaceProps props(SkSurfaceProps::kUseDeviceIndependentFonts_Flag | gammaCorrect,
                              SkSurfaceProps::kLegacyFontHost_InitType);
         auto surface(SkSurface::MakeRenderTarget(ctx, SkBudgeted::kNo, info, 0, &props));
         SkCanvas* canvas = surface ? surface->getCanvas() : inputCanvas;