Added --deepColor option to SampleApp, triggers creation of a ten-bit/channel buffer on Windows.

src/gpu/effects/GrColorSpaceEffect.h

+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef GrColorSpaceEffect_DEFINED
+#define GrColorSpaceEffect_DEFINED
+
+#include "GrSingleTextureEffect.h"
+
+#include "SkColorSpace.h"
+
+class GrColorSpaceEffect : public GrSingleTextureEffect {
+public:
+    /**
+     * Creates an effect that performs linear -> sRGB conversion.
+     */
+    static const GrFragmentProcessor* Create(GrTexture*,
+                                             const SkColorSpace* srcColorSpace,
+                                             const SkColorSpace* dstColorSpace,
+                                             uint32_t colorSpaceOpsFlags);
+
+    const char* name() const override { return "Color Space"; }
+
+    bool manualDstGamma() const { return fManualDstGamma; }
+    bool gammaIsSRGB() const { return fGammaIsSRGB; }
+    const SkFloat3& gamma() const { return fGamma; }
+
+private:
+    GrColorSpaceEffect(GrTexture*, const SkColorSpace* srcColorSpace,
+                       const SkColorSpace* dstColorSpace, uint32_t colorSpaceOpsFlags);
+
+    GrGLSLFragmentProcessor* onCreateGLSLInstance() const override;
+
+    void onGetGLSLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override;
+
+    bool onIsEqual(const GrFragmentProcessor&) const override;
+
+    void onComputeInvariantOutput(GrInvariantOutput* inout) const override;
+
+    bool fManualDstGamma;
+    bool fGammaIsSRGB;
+    SkFloat3 fGamma;
+
+    GR_DECLARE_FRAGMENT_PROCESSOR_TEST;
+
+    typedef GrSingleTextureEffect INHERITED;
+};
+
+#endif