Split //ios/chrome/browser in multiple targets.

ios/chrome/browser/web/BUILD.gn

Index: ios/chrome/browser/web/BUILD.gn
diff --git a/components/favicon/ios/BUILD.gn b/ios/chrome/browser/web/BUILD.gn
similarity index 51%
copy from components/favicon/ios/BUILD.gn
copy to ios/chrome/browser/web/BUILD.gn
index 5a8a704c6876d093694d0c22f5d00c4cf9f12815..3f59b9bb327567b74d5aa4214b0621cb345898cd 100644
--- a/components/favicon/ios/BUILD.gn
+++ b/ios/chrome/browser/web/BUILD.gn
@@ -2,18 +2,17 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-source_set("ios") {
+source_set("web") {
   sources = [
-    "favicon_url_util.cc",
-    "favicon_url_util.h",
-    "web_favicon_driver.h",
-    "web_favicon_driver.mm",
+    "dom_altering_lock.h",
+    "dom_altering_lock.mm",
+    "resubmit_data_controller.h",
+    "resubmit_data_controller.mm",
   ]
   deps = [
     "//base",
-    "//components/favicon/core",
-    "//components/favicon_base",
+    "//components/strings",
     "//ios/web",
-    "//ui/gfx",
+    "//ui/base",
   ]
 }