Revert 35500 - Added an application framework for demos. Ported hellotriangle...

gpu/demos/hello_triangle/main.cc

-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// This is a simple example that draws a single triangle with
-// a minimal vertex/fragment shader.  The purpose of this
-// example is to demonstrate the basic concepts of
-// OpenGL ES 2.0 rendering.
-
-#include "gpu/demos/app_framework/application.h"
-#include "third_party/gles_book_examples/Chapter_2/Hello_Triangle/Hello_Triangle.h"
-
-namespace gpu_demos {
-class HelloTriangle : public Application {
- public:
-  HelloTriangle();
-  ~HelloTriangle();
-
-  bool Init();
-
- protected:
-  virtual void Draw();
-
- private:
-  ESContext context_;
-  HTUserData user_data_;
-};
-
-HelloTriangle::HelloTriangle() {
-  esInitContext(&context_);
-
-  memset(&user_data_, 0, sizeof(HTUserData));
-  context_.userData = &user_data_;
-}
-
-HelloTriangle::~HelloTriangle() {
-  htShutDown(&context_);
-}
-
-bool HelloTriangle::Init() {
-  if (!Application::InitRenderContext()) return false;
-
-  context_.width = width();
-  context_.height = height();
-  if (!htInit(&context_)) return false;
-
-  return true;
-}
-
-void HelloTriangle::Draw() {
-  htDraw(&context_);
-}
-}  // namespace gpu_demos
-
-int main(int argc, char *argv[]) {
-  gpu_demos::HelloTriangle app;
-  if (!app.Init()) {
-    printf("Could not init.\n");
-    return EXIT_FAILURE;
-  }
-
-  app.MainLoop();
-  return EXIT_SUCCESS;
-}