Add dependency on Motion Interchange for Objective-C.

The library Motion Interchange for Objective-C is a new dependency
of the Material Components for iOS. Library description:

    This library defines a format for representing motion in
    Objective-C and Swift applications. The primary data type,
    MotionTiming, allows you to describe the duration, delay,
    timing curve, and repetition for an animation.

Bug: 785248
Change-Id: I8a86c3df9832635911c284f637fe0482d774a1c8
Cq-Include-Trybots: master.tryserver.chromium.mac:ios-simulator-cronet;master.tryserver.chromium.mac:ios-simulator-full-configs
Reviewed-on: https://chromium-review.googlesource.com/802086Reviewed-by: Max Moroz <mmoroz@chromium.org>
Reviewed-by: Peter Lee <pkl@chromium.org>
Commit-Queue: Mohammad Refaat <mrefaat@chromium.org>
Cr-Commit-Position: refs/heads/master@{#520825}

.gitignore

@@ -186,6 +186,7 @@ vs-chromium-project.txt
 /ios/third_party/material_roboto_font_loader_ios/src
 /ios/third_party/material_sprited_animation_view_ios/src
 /ios/third_party/material_text_accessibility_ios/src
+/ios/third_party/motion_interchange_objc/src
 /ios/third_party/ochamcrest/src
 /ios_internal
 /libassistant

DEPS

@@ -222,6 +222,11 @@ deps = {
       'condition': 'checkout_ios',
   },
 
+  'src/ios/third_party/motion_interchange_objc/src': {
+      'url': Var('chromium_git') + '/external/github.com/material-motion/motion-interchange-objc.git' + '@' + '26d91bf724adec6880cbc83a95d4cb4fb94847b6',
+      'condition': 'checkout_ios',
+  },
+
   'src/ios/third_party/ochamcrest/src': {
       'url': Var('chromium_git') + '/external/github.com/hamcrest/OCHamcrest.git' + '@' + '92d9c14d13bb864255e65c09383564653896916b',
       'condition': 'checkout_ios',

ios/third_party/motion_interchange_objc/BUILD.gn

+# 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.
+
+config("config") {
+  include_dirs = [ "src/src" ]
+  visibility = [ ":motion_interchange_objc" ]
+}
+
+source_set("motion_interchange_objc") {
+  sources = [
+    "src/src/MDMMotionCurve.h",
+    "src/src/MDMMotionCurve.m",
+    "src/src/MDMMotionRepetition.h",
+    "src/src/MDMMotionTiming.h",
+    "src/src/MotionInterchange.h",
+  ]
+  public = [
+    "src/src/MDMMotionCurve.h",
+    "src/src/MDMMotionRepetition.h",
+    "src/src/MDMMotionTiming.h",
+    "src/src/MotionInterchange.h",
+  ]
+
+  libs = [
+    "CoreGraphics.framework",
+    "Foundation.framework",
+    "QuartzCore.framework",
+  ]
+  configs -= [ "//build/config/compiler:chromium_code" ]
+  configs += [
+    ":config",
+    "//build/config/compiler:enable_arc",
+    "//build/config/compiler:no_chromium_code",
+  ]
+  public_configs = [ ":config" ]
+}

ios/third_party/motion_interchange_objc/OWNERS

+sdefresne@chromium.org
+rohitrao@chromium.org
+
+# These are for the common case of adding or renaming files. If you're doing
+# structural changes, please get a review from an OWNER.
+per-file BUILD.gn=*
+
+# TEAM: ios-directory-owners@chromium.org
+# OS: iOS

ios/third_party/motion_interchange_objc/README.chromium

+Name: Motion Interchange for Objective-C
+URL: https://github.com/material-motion/motion-interchange-objc
+Version: 0
+Revision: 02e2308e1c68cd966a91807b17bcdf57f92af401
+License: Apache 2.0
+License File: LICENSE
+Security Critical: yes
+
+Description:
+This library defines a format for representing motion in Objective-C and
+Swift applications. The primary data type, MotionTiming, allows you to
+describe the duration, delay, timing curve, and repetition for an animation.
+
+Local Modifications:
+None