Remove some unnessary dependencies

- angle
- boringssl
- smhasher
- cython

Remove these dependencies required stripping down some BUILD.gn files to remove
targets we don't build.

DEPS

@@ -20,10 +20,8 @@
 vars = {
   'chromium_git': 'https://chromium.googlesource.com',
   'skia_revision': '2ced78866fcadd98895777c8dffe92e229775181',
-  'angle_revision': '02df796f466cee47f42130bd8c7dbad6c72a1662',
   'dart_revision': 'e5e3d161e70d862608e6597facdf5ac8ae9ab2c3',
   'dart_observatory_packages_revision': 'cdc4b3d4c15b9c0c8e7702dff127b440afbb7485',
-  'boringssl_revision': '7f15ff53d82a1991d6732d2303eb652b1cf7e023',
 
   'buildtools_revision': '5215ee866bc3e8eb4a7f124212845abf4029e60b',
 
@@ -58,9 +56,6 @@ deps = {
   'src/testing/gmock':
    Var('chromium_git') + '/external/googlemock.git' + '@' + '29763965ab52f24565299976b936d1265cb6a271',
 
-  'src/third_party/angle':
-   Var('chromium_git') + '/angle/angle.git' + '@' +  Var('angle_revision'),
-
   'src/third_party/icu':
    Var('chromium_git') + '/chromium/deps/icu.git' + '@' + 'c3f79166089e5360c09e3053fce50e6e296c3204',
 
@@ -81,18 +76,9 @@ deps = {
   'src/third_party/libjpeg_turbo':
    Var('chromium_git') + '/chromium/deps/libjpeg_turbo.git' + '@' + 'f4631b6ee8b1dbb05e51ae335a7886f9ac598ab6',
 
-  'src/third_party/smhasher/src':
-    Var('chromium_git') + '/external/smhasher.git' + '@' + 'e87738e57558e0ec472b2fc3a643b838e5b6e88f',
-
   'src/third_party/mesa/src':
    Var('chromium_git') + '/chromium/deps/mesa.git' + '@' + '071d25db04c23821a12a8b260ab9d96a097402f0',
 
-  'src/third_party/boringssl/src':
-   'https://boringssl.googlesource.com/boringssl.git' + '@' +  Var('boringssl_revision'),
-
-  'src/third_party/requests/src':
-    Var('chromium_git') + '/external/github.com/kennethreitz/requests.git' + '@' + 'f172b30356d821d180fa4ecfa3e71c7274a32de4',
-
   'src/third_party/dart-pkg/archive':
     Var('chromium_git') + '/external/github.com/brendan-duncan/archive.git' + '@' + Var('archive_dart_revision'),
 
@@ -150,9 +136,6 @@ deps_os = {
     'src/third_party/robolectric/lib':
       Var('chromium_git') + '/chromium/third_party/robolectric.git' + '@' + '6b63c99a8b6967acdb42cbed0adb067c80efc810',
 
-    'src/third_party/appurify-python/src':
-     Var('chromium_git') + '/external/github.com/appurify/appurify-python.git' + '@' + 'ee7abd5c5ae3106f72b2a0b9d2cb55094688e867',
-
     'src/third_party/freetype-android/src':
        Var('chromium_git') + '/chromium/src/third_party/freetype2.git' + '@' + 'e186230678ee8e4ea4ac4797ece8125761e3225a',
   },

engine/src/flutter/sky/tools/roll/roll.py

@@ -38,11 +38,6 @@ _build_deps = [
     'tools/valgrind',
 ]
 
-# things used from //mojo/public
-_mojo_sdk_deps = [
-    'third_party/cython',
-]
-
 _chromium_libs = [
     'crypto',
     'url',
@@ -51,7 +46,6 @@ _chromium_libs = [
 _third_party_deps = [
     'third_party/android_platform',
     'third_party/apple_apsl',
-    'third_party/boringssl',
     'third_party/brotli',
     'third_party/expat',
     'third_party/freetype-android',
@@ -73,12 +67,10 @@ _third_party_deps = [
     'third_party/qcms',
     'third_party/re2',
     'third_party/robolectric',
-    'third_party/smhasher',
-    'third_party/yasm',
     'third_party/zlib',
 ]
 
-dirs_from_chromium = _base_deps + _build_deps + _mojo_sdk_deps + _chromium_libs + _third_party_deps
+dirs_from_chromium = _base_deps + _build_deps + _chromium_libs + _third_party_deps
 
 dirs_from_mojo = [
     'gpu',
@@ -97,11 +89,13 @@ files_not_to_roll = [
     'build/config/ui.gni',
     'build/ls.py',
     'build/module_args/mojo.gni',
+    'crypto/BUILD.gn',
+    'gpu/BUILD.gn',
+    'tools/android/download_android_tools.py',
     'tools/android/VERSION_LINUX_NDK',
     'tools/android/VERSION_LINUX_SDK',
     'tools/android/VERSION_MACOSX_NDK',
     'tools/android/VERSION_MACOSX_SDK',
-    'tools/android/download_android_tools.py',
 ]
 
 

engine/src/flutter/third_party/smhasher/BUILD.gn

@@ -1,30 +0,0 @@
-# Copyright 2014 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.
-
-source_set("murmurhash3") {
-  sources = [
-    "src/MurmurHash3.cpp",
-    "src/MurmurHash3.h",
-  ]
-  configs -= [ "//build/config/compiler:chromium_code" ]
-  configs += [ "//build/config/compiler:no_chromium_code" ]
-}
-
-source_set("pmurhash") {
-  sources = [
-    "src/PMurHash.c",
-    "src/PMurHash.h",
-  ]
-  configs -= [ "//build/config/compiler:chromium_code" ]
-  configs += [ "//build/config/compiler:no_chromium_code" ]
-}
-
-source_set("cityhash") {
-  sources = [
-    "src/City.cpp",
-    "src/City.h",
-  ]
-  configs -= [ "//build/config/compiler:chromium_code" ]
-  configs += [ "//build/config/compiler:no_chromium_code" ]
-}

engine/src/flutter/third_party/smhasher/LICENSE

@@ -1,23 +0,0 @@
-All MurmurHash source files are placed in the public domain.
-
-The license below applies to all other code in SMHasher:
-
-Copyright (c) 2011 Google, Inc.
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.

engine/src/flutter/third_party/smhasher/README.chromium

@@ -1,14 +0,0 @@
-Name: SMHasher
-URL: http://code.google.com/p/smhasher/
-Version: 0
-Revision: 147
-License: MIT, Public Domain
-License File: LICENSE
-Security Critical: yes
-
-Description:
-This is a library containing the MurmurHash3 function, and a hashing function
-test suite.
-
-Licenses are MIT (SMHasher) and Public Domain (MurmurHash).
-

engine/src/flutter/third_party/smhasher/smhasher.gyp

@@ -1,36 +0,0 @@
-# Copyright (c) 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.
-
-{
-  'targets': [
-    {
-      'target_name': 'murmurhash3',
-      'type': 'static_library',
-      'sources': [
-        'src/MurmurHash3.h',
-        'src/MurmurHash3.cpp',
-      ],
-    },
-    {
-      'target_name': 'pmurhash',
-      'type': 'static_library',
-      'sources': [
-        'src/PMurHash.h',
-        'src/PMurHash.c',
-      ],
-    },
-    {
-      'target_name': 'cityhash',
-      'type': 'static_library',
-      'sources': [
-        'src/City.cpp',
-        'src/City.h',
-      ],
-      # TODO(jschuh): http://code.google.com/p/smhasher/issues/detail?id=19
-      'msvs_disabled_warnings': [
-        4267,
-      ],
-    },
-  ],
-}