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

tools/gpu/gl/win/CreatePlatformGLTestContext_win.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gl/GLTestContext.h"
 
@@ skipping 74 matching lines @@
     SkWGLContextRequest contextType =
         kGLES_GrGLStandard == forcedGpuAPI ?
         kGLES_SkWGLContextRequest : kGLPreferCompatibilityProfile_SkWGLContextRequest;
 
     fPbufferContext = SkWGLPbufferContext::Create(fDeviceContext, 0, contextType);
 
     HDC dc;
     HGLRC glrc;
 
     if (nullptr == fPbufferContext) {
-        if (!(fGlRenderContext = SkCreateWGLContext(fDeviceContext, 0, contextType))) {
+        if (!(fGlRenderContext = SkCreateWGLContext(fDeviceContext, 0, false, contextType))) {
             SkDebugf("Could not create rendering context.\n");
             this->destroyGLContext();
             return;
         }
         dc = fDeviceContext;
         glrc = fGlRenderContext;
     } else {
         ReleaseDC(fWindow, fDeviceContext);
         fDeviceContext = 0;
         DestroyWindow(fWindow);
@@ skipping 90 matching lines @@
     }
     WinGLTestContext *ctx = new WinGLTestContext(forcedGpuAPI);
     if (!ctx->isValid()) {
         delete ctx;
         return nullptr;
     }
     return ctx;
 }
 }  // namespace sk_gpu_test