Refactor DrawTextureQuad and CheckPixels in gl_tests util

gpu/command_buffer/tests/compressed_texture_test.cc

 // Copyright 2013 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 <GLES2/gl2extchromium.h>
 #include <stdint.h>
 
 #include "gpu/command_buffer/tests/gl_manager.h"
@@ skipping 215 matching lines @@
   // Draw.
   glDrawArrays(GL_TRIANGLES, 0, 6);
   glFlush();
 
   // Verify results.
   int origin[] = {0, 0};
   uint8_t expected_rgba[] = {0, 0, 0, 255};
   for (unsigned i = 0; i < kPaletteSize; ++i) {
     origin[0] = kBlockSize * i;
     ToRGB888(kPalette[i], expected_rgba);
-    EXPECT_TRUE(GLTestHelper::CheckPixels(origin[0], origin[1],
-                                          kBlockSize, kBlockSize,
-                                          0, expected_rgba));
+    EXPECT_TRUE(GLTestHelper::CheckPixels(origin[0], origin[1], kBlockSize,
+                                          kBlockSize, 0, expected_rgba,
+                                          nullptr));
   }
   GLTestHelper::CheckGLError("CompressedTextureTest.Draw", __LINE__);
 }
 
 static const GLenum kFormats[] = {
   GL_COMPRESSED_RGB_S3TC_DXT1_EXT,
   GL_COMPRESSED_RGBA_S3TC_DXT1_EXT,
   GL_COMPRESSED_RGBA_S3TC_DXT3_EXT,
   GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
 };
 INSTANTIATE_TEST_CASE_P(Format,
                         CompressedTextureTest,
                         ::testing::ValuesIn(kFormats));
 
 }  // namespace gpu