[ios] Move WebStateList to ios/chrome/browser/web_state_list.

ios/clean/chrome/browser/ui/tab_grid/BUILD.gn

Index: ios/clean/chrome/browser/ui/tab_grid/BUILD.gn
diff --git a/ios/clean/chrome/browser/ui/tab_grid/BUILD.gn b/ios/clean/chrome/browser/ui/tab_grid/BUILD.gn
index ef9472e80a8384a2a5a7fb1ae740a61ec617fcf6..85d19fe8f7e2a853f807b720638e04bbda974afa 100644
--- a/ios/clean/chrome/browser/ui/tab_grid/BUILD.gn
+++ b/ios/clean/chrome/browser/ui/tab_grid/BUILD.gn
@@ -16,13 +16,13 @@ source_set("tab_grid") {
     ":tab_grid_ui",
     "//base",
     "//ios/chrome/browser/browser_state",
+    "//ios/chrome/browser/web_state_list",
     "//ios/clean/chrome/browser",
     "//ios/clean/chrome/browser/ui/commands",
     "//ios/clean/chrome/browser/ui/settings",
     "//ios/clean/chrome/browser/ui/tab",
     "//ios/clean/chrome/browser/ui/tab_collection",
     "//ios/clean/chrome/browser/ui/tab_collection:tab_collection_ui",
-    "//ios/shared/chrome/browser/tabs",
     "//ios/shared/chrome/browser/ui/browser_list",
     "//ios/shared/chrome/browser/ui/commands",
     "//ios/shared/chrome/browser/ui/coordinators",
@@ -80,9 +80,9 @@ source_set("unit_tests") {
     ":tab_grid_ui",
     "//base",
     "//base/test:test_support",
+    "//ios/chrome/browser/web_state_list",
+    "//ios/chrome/browser/web_state_list:test_support",
     "//ios/chrome/test/base",
-    "//ios/shared/chrome/browser/tabs",
-    "//ios/shared/chrome/browser/tabs:test_support",
     "//ios/web:test_support",
     "//testing/gtest",
     "//third_party/ocmock",