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

src/gpu/GrSurface.cpp

Index: src/gpu/GrSurface.cpp
diff --git a/src/gpu/GrSurface.cpp b/src/gpu/GrSurface.cpp
index 886945c71036052812e3e0e003ad931b1dfd672d..63e0090b54303f701d092b481b4e9c95e893bbc7 100644
--- a/src/gpu/GrSurface.cpp
+++ b/src/gpu/GrSurface.cpp
@@ -116,6 +116,22 @@ bool GrSurface::readPixels(int left, int top, int width, int height,
                                       rowBytes, pixelOpsFlags);
 }
 
+bool GrSurface::writePixelsWithColorSpace(int left, int top, int width, int height,
+                                          GrPixelConfig config,
+                                          const SkColorSpace* srcColorSpace,
+                                          const SkColorSpace* dstColorSpace,
+                                          const void* buffer, size_t rowBytes,
+                                          uint32_t colorSpaceOpsFlags) {
+    // go through context so that all necessary flushing occurs
+    GrContext* context = this->getContext();
+    if (nullptr == context) {
+        return false;
+    }
+    return context->writeSurfacePixelsWithColorSpace(this, left, top, width, height, config,
+                                                     srcColorSpace, dstColorSpace, buffer,
+                                                     rowBytes, colorSpaceOpsFlags);
+}
+
 SkImageInfo GrSurface::info(SkAlphaType alphaType) const {
     SkColorType colorType;
     SkColorProfileType profileType;