Revert of Add OpenGL context to Viewer.

tools/viewer/sk_app/win/GLWindowContext_win.cpp

Index: tools/viewer/sk_app/win/GLWindowContext_win.cpp
diff --git a/tools/viewer/sk_app/win/GLWindowContext_win.cpp b/tools/viewer/sk_app/win/GLWindowContext_win.cpp
deleted file mode 100644
index 0694db308ff59736be165d38b6184f0418ebd96a..0000000000000000000000000000000000000000
--- a/tools/viewer/sk_app/win/GLWindowContext_win.cpp
+++ /dev/null
@@ -1,110 +0,0 @@
-
-/*
- * Copyright 2015 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "GLWindowContext_win.h"
-
-#include <GL/gl.h>
-
- // windows stuff
-#include "win/SkWGL.h"
-#include "Window_win.h"
-
-namespace sk_app {
-
-// platform-dependent create
-GLWindowContext* GLWindowContext::Create(void* platformData, const DisplayParams& params) {
-    GLWindowContext_win* ctx = new GLWindowContext_win(platformData, params);
-    if (!ctx->isValid()) {
-        delete ctx;
-        return nullptr;
-    }
-    return ctx;
-}
-
-GLWindowContext_win::GLWindowContext_win(void* platformData, const DisplayParams& params)
-    : GLWindowContext(platformData, params)
-    , fHWND(0)
-    , fHGLRC(NULL) {
-
-    // any config code here (particularly for msaa)?
-
-    this->initializeContext(platformData, params);
-}
-
-GLWindowContext_win::~GLWindowContext_win() {
-    this->destroyContext();
-}
-
-void GLWindowContext_win::onInitializeContext(void* platformData, const DisplayParams& params) {
-
-    ContextPlatformData_win* winPlatformData =
-        reinterpret_cast<ContextPlatformData_win*>(platformData);
-
-    if (winPlatformData) {
-        fHWND = winPlatformData->fHWnd;
-    }
-    HDC dc = GetDC(fHWND);
-
-    fHGLRC = SkCreateWGLContext(dc, params.fMSAASampleCount, params.fDeepColor,
-                                kGLPreferCompatibilityProfile_SkWGLContextRequest);
-    if (NULL == fHGLRC) {
-        return;
-    }
-
-    if (wglMakeCurrent(dc, fHGLRC)) {
-        glClearStencil(0);
-        glClearColor(0, 0, 0, 0);
-        glStencilMask(0xffffffff);
-        glClear(GL_STENCIL_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
-
-        // use DescribePixelFormat to get the stencil and color bit depth.
-        int pixelFormat = GetPixelFormat(dc);
-        PIXELFORMATDESCRIPTOR pfd;
-        DescribePixelFormat(dc, pixelFormat, sizeof(pfd), &pfd);
-        fStencilBits = pfd.cStencilBits;
-        // pfd.cColorBits includes alpha, so it will be 32 in 8/8/8/8 and 10/10/10/2
-        fColorBits = pfd.cRedBits + pfd.cGreenBits + pfd.cBlueBits;
-
-        // Get sample count if the MSAA WGL extension is present
-        SkWGLExtensions extensions;
-        if (extensions.hasExtension(dc, "WGL_ARB_multisample")) {
-            static const int kSampleCountAttr = SK_WGL_SAMPLES;
-            extensions.getPixelFormatAttribiv(dc,
-                                              pixelFormat,
-                                              0,
-                                              1,
-                                              &kSampleCountAttr,
-                                              &fSampleCount);
-        } else {
-            fSampleCount = 0;
-        }
-
-        RECT rect;
-        GetClientRect(fHWND, &rect);
-        fWidth = rect.right - rect.left;
-        fHeight = rect.bottom - rect.top;
-        glViewport(0, 0, fWidth, fHeight);
-    }
-}
-
-
-void GLWindowContext_win::onDestroyContext() {
-    wglMakeCurrent(wglGetCurrentDC(), NULL);
-    wglDeleteContext(fHGLRC);
-    fHGLRC = NULL;
-}
-
-
-void GLWindowContext_win::onSwapBuffers() {
-    HDC dc = GetDC((HWND)fHWND);
-    SwapBuffers(dc);
-    ReleaseDC((HWND)fHWND, dc);
-}
-
-
-}   //namespace sk_app