Move skia to DEPS, and put it in third_party.

skia/ext/image_operations_unittest.cc

 // Copyright (c) 2006-2008 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 <stdlib.h>
 
 #include "skia/ext/image_operations.h"
-#include "skia/include/SkColorPriv.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "SkColorPriv.h"
 #include "SkBitmap.h"
 
 namespace {
 
 // Computes the average pixel value for the given range, inclusive.
 uint32_t AveragePixel(const SkBitmap& bmp,
                       int x_min, int x_max,
                       int y_min, int y_max) {
   float accum[4] = {0, 0, 0, 0};
   int count = 0;
@@ skipping 372 matching lines @@
   SkAutoLockPixels cropped_lock(cropped);
   for (int y = 0; y < src_h; y++) {
     for (int x = 0; x < src_w; x++) {
       EXPECT_EQ(*src.getAddr32(x, y),
                 *cropped.getAddr32((x + src_w / 2) % src_w,
                                    (y + src_h / 2) % src_h));
     }
   }
 }