Move WebpDecoder from ios/web to components/image_fetcher

ios/web/BUILD.gn

 # Copyright 2015 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.
 
 import("//ios/build/config.gni")
 import("//ios/web/js_compile.gni")
 import("//testing/test.gni")
 import("//tools/grit/grit_rule.gni")
 
 group("all_tests") {
@@ skipping 245 matching lines @@
 source_set("web") {
   deps = [
     ":core",
     ":js_resources",
     ":resources",
     ":user_agent",
     "//base",
     "//components/url_formatter",
     "//ios/net",
     "//ios/third_party/blink:html_tokenizer",
-    "//ios/web/public/image_fetcher",
     "//mojo/public/cpp/system",
     "//mojo/public/js",
     "//net",
     "//services/service_manager/public/cpp",
     "//ui/base",
     "//ui/gfx",
     "//ui/gfx/geometry",
     "//ui/resources",
     "//url",
   ]
@@ skipping 96 matching lines @@
 source_set("test_support") {
   testonly = true
 
   deps = [
     ":web",
     "//base",
     "//base/test:test_support",
     "//ios/testing:ios_test_support",
     "//ios/testing:ocmock_support",
     "//ios/third_party/gcdwebserver",
-    "//ios/web/public/image_fetcher",
     "//ios/web/test:mojo_bindings",
     "//net:test_support",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/ocmock",
     "//ui/base",
   ]
 
   sources = [
     "public/test/fakes/crw_test_js_injection_receiver.h",
@@ skipping 110 matching lines @@
     ":core",
     ":ios_web_unittests_bundle_data",
     ":run_all_unittests",
     ":test_support",
     ":web",
     "//base",
     "//base/test:test_support",
     "//components/url_formatter",
     "//ios/net",
     "//ios/testing:ocmock_support",
-    "//ios/web/public/image_fetcher:unit_tests",
     "//ios/web/test:mojo_bindings",
     "//net:test_support",
     "//services/service_manager/public/cpp",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/ocmock",
     "//ui/base:test_support",
   ]
 
   sources = [
@@ skipping 138 matching lines @@
     "ios_web_resources.pak",
   ]
   grit_flags = [
     "-E",
     "root_gen_dir=" + rebase_path(root_gen_dir, root_build_dir),
   ]
   deps = [
     "//mojo/public/js:bindings",
   ]
 }