Refactor DrawTextureQuad and CheckPixels in gl_tests util

gpu/command_buffer/tests/gl_pointcoord_unittest.cc

 // Copyright (c) 2012 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.
 
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
 #include <stdint.h>
 
 #include "gpu/command_buffer/tests/gl_manager.h"
 #include "gpu/command_buffer/tests/gl_test_utils.h"
@@ skipping 120 matching lines @@
           GLfloat u = xx / max_point_size * 2 - 1;
           GLfloat v = yy / max_point_size * 2 - 1;
           GLint xf = s2p(point_x + u * point_width);
           GLint yf = s2p(point_y + v * point_width);
           GLfloat s = 0.5 + (xf + 0.5 - xw) / max_point_size;
           GLfloat t = 0.5 + (yf + 0.5 - yw) / max_point_size;
           uint8_t color[4] = {
               static_cast<uint8_t>(s * 255),
               static_cast<uint8_t>((1 - t) * 255), 0, 255,
           };
-          GLTestHelper::CheckPixels(xf, yf, 1, 1, 4, color);
+          GLTestHelper::CheckPixels(xf, yf, 1, 1, 4, color, nullptr);
         }
       }
     }
   }
 
   GLTestHelper::CheckGLError("no errors", __LINE__);
 }
 
 }  // namespace gpu