Revert "Revert 186416"

gpu/command_buffer/tests/gl_test_utils.h

Index: gpu/command_buffer/tests/gl_test_utils.h
diff --git a/gpu/command_buffer/tests/gl_test_utils.h b/gpu/command_buffer/tests/gl_test_utils.h
index 31de7cdb6ae6cb5d28ccdfcea0213b2551885e38..972ea0af4064f172033c4a322edb229edc7b820d 100644
--- a/gpu/command_buffer/tests/gl_test_utils.h
+++ b/gpu/command_buffer/tests/gl_test_utils.h
@@ -35,6 +35,11 @@ class GLTestHelper {
   // Returns the created buffer.
   static GLuint SetupUnitQuad(GLint position_location);
 
+  // Make a 6 vertex colors.
+  // Returns the created buffer.
+  static GLuint SetupColorsForUnitQuad(
+      GLint location, const GLfloat color[4], GLenum usage);
+
   // Checks an area of pixels for a color.
   static bool CheckPixels(
       GLint x, GLint y, GLsizei width, GLsizei height, GLint tolerance,