Introduce a Doodle Fetcher for NTP

components/doodle/BUILD.gn

Index: components/doodle/BUILD.gn
diff --git a/components/doodle/BUILD.gn b/components/doodle/BUILD.gn
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index 0000000000000000000000000000000000000000..fe6dc99f14d0ee9319b6b178bbf707e7bcefdb02
--- /dev/null
+++ b/components/doodle/BUILD.gn
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+# Copyright 2017 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.
+
+static_library("doodle") {
+  sources = [
+    "doodle_fetcher.cc",
+    "doodle_fetcher.h",
+  ]
+
+  deps = [
+    "//base",
+    "//net",
+  ]
+}
+
+source_set("unit_tests") {
+  testonly = true
+  sources = [
+    "doodle_fetcher_unittest.cc",
+  ]
+
+  deps = [
+    ":doodle",
+    "//net:test_support",
+    "//ui/base",
+  ]
+}