Roll src/ios/third_party/material_components_ios/src/ 39de3e3ef..87422cf14 (6 commits)

TBR=bling-team@google.com

Change-Id: I5bc57ff35f996749e118a58ccfaf937339e1de51
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2270340Reviewed-by: Internal Frameworks Autoroller <bling-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Internal Frameworks Autoroller <bling-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#782946}

DEPS

@@ -534,7 +534,7 @@ deps = {
   },
 
   'src/ios/third_party/material_components_ios/src': {
-      'url': Var('chromium_git') + '/external/github.com/material-components/material-components-ios.git' + '@' + '39de3e3efbabda3e20aabf14485f872979b8d230',
+      'url': Var('chromium_git') + '/external/github.com/material-components/material-components-ios.git' + '@' + '87422cf14f454ce8c0c9f4a9c3233f2aa73ef6b4',
       'condition': 'checkout_ios',
   },
 

ios/third_party/material_components_ios/BUILD.gn

@@ -536,6 +536,7 @@ _mdc_public_headers = [
   "src/components/private/ThumbTrack/src/MDCThumbTrack.h",
   "src/components/private/ThumbTrack/src/MDCThumbView.h",
   "src/components/private/ThumbTrack/src/MaterialThumbTrack.h",
+  "src/components/private/ThumbTrack/src/private/MDCDiscreteDotView.h",
   "src/components/private/ThumbTrack/src/private/MDCThumbTrack+Private.h",
   "src/components/private/UIMetrics/src/MDCLayoutMetrics.h",
   "src/components/private/UIMetrics/src/MaterialUIMetrics.h",
@@ -1533,6 +1534,8 @@ _mdc_sources = [
   "src/components/private/ThumbTrack/src/MDCThumbView.h",
   "src/components/private/ThumbTrack/src/MDCThumbView.m",
   "src/components/private/ThumbTrack/src/MaterialThumbTrack.h",
+  "src/components/private/ThumbTrack/src/private/MDCDiscreteDotView.h",
+  "src/components/private/ThumbTrack/src/private/MDCDiscreteDotView.m",
   "src/components/private/ThumbTrack/src/private/MDCThumbTrack+Private.h",
   "src/components/private/UIMetrics/src/MDCLayoutMetrics.h",
   "src/components/private/UIMetrics/src/MDCLayoutMetrics.m",