cc: Remove code for drawing checkerboard quads, it's not used.

cc/test/render_pass_test_common.cc

 // Copyright 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 "cc/test/render_pass_test_common.h"
 
 #include "base/bind.h"
-#include "cc/quads/checkerboard_draw_quad.h"
 #include "cc/quads/debug_border_draw_quad.h"
 #include "cc/quads/io_surface_draw_quad.h"
 #include "cc/quads/render_pass_draw_quad.h"
 #include "cc/quads/shared_quad_state.h"
 #include "cc/quads/solid_color_draw_quad.h"
 #include "cc/quads/stream_video_draw_quad.h"
 #include "cc/quads/texture_draw_quad.h"
 #include "cc/quads/tile_draw_quad.h"
 #include "cc/quads/yuv_video_draw_quad.h"
 #include "cc/resources/resource_provider.h"
@@ skipping 65 matching lines @@
   SharedQuadState* shared_state = this->CreateAndAppendSharedQuadState();
   shared_state->SetAll(gfx::Transform(),
                        rect.size(),
                        rect,
                        rect,
                        false,
                        1,
                        SkXfermode::kSrcOver_Mode,
                        0);
 
-  CheckerboardDrawQuad* checkerboard_quad =
-      this->CreateAndAppendDrawQuad<CheckerboardDrawQuad>();
-  checkerboard_quad->SetNew(shared_state, rect, visible_rect, SK_ColorRED, 1.f);
-
   DebugBorderDrawQuad* debug_border_quad =
       this->CreateAndAppendDrawQuad<DebugBorderDrawQuad>();
   debug_border_quad->SetNew(shared_state, rect, visible_rect, SK_ColorRED, 1);
 
   IOSurfaceDrawQuad* io_surface_quad =
       this->CreateAndAppendDrawQuad<IOSurfaceDrawQuad>();
   io_surface_quad->SetNew(shared_state,
                           rect,
                           opaque_rect,
                           visible_rect,
@@ skipping 132 matching lines @@
   YUVVideoDrawQuad* yuv_quad =
       this->CreateAndAppendDrawQuad<YUVVideoDrawQuad>();
   yuv_quad->SetNew(shared_state2, rect, opaque_rect, visible_rect,
                    gfx::RectF(.0f, .0f, 100.0f, 100.0f),
                    gfx::RectF(.0f, .0f, 50.0f, 50.0f), gfx::Size(100, 100),
                    gfx::Size(50, 50), plane_resources[0], plane_resources[1],
                    plane_resources[2], plane_resources[3], color_space);
 }
 
 }  // namespace cc