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

ios/chrome/browser/browsing_data/BUILD.gn

Index: ios/chrome/browser/browsing_data/BUILD.gn
diff --git a/ios/chrome/browser/browsing_data/BUILD.gn b/ios/chrome/browser/browsing_data/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..0b63c92c7290eb6c083c3cb3a92ce537b4a7cad9
--- /dev/null
+++ b/ios/chrome/browser/browsing_data/BUILD.gn
@@ -0,0 +1,65 @@
+# Copyright 2016 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("browsing_data") {
+  sources = [
+    "browsing_data_change_listening.h",
+    "browsing_data_counter_wrapper.cc",
+    "browsing_data_counter_wrapper.h",
+    "browsing_data_remover_helper.cc",
+    "browsing_data_remover_helper.h",
+    "cache_counter.cc",
+    "cache_counter.h",
+    "ios_browsing_data_counter_factory.cc",
+    "ios_browsing_data_counter_factory.h",
+    "ios_chrome_browsing_data_remover.h",
+    "ios_chrome_browsing_data_remover.mm",
+  ]
+  deps = [
+    "//base",
+    "//components/autofill/core/browser",
+    "//components/browser_sync",
+    "//components/browsing_data/core",
+    "//components/history/core/browser",
+    "//components/keyed_service/core",
+    "//components/omnibox/browser",
+    "//components/password_manager/core/browser",
+    "//components/prefs",
+    "//components/search_engines",
+    "//components/sessions",
+    "//ios/chrome/browser:browser_no_public_deps",
+    "//ios/chrome/browser/autofill",
+    "//ios/chrome/browser/browser_state",
+    "//ios/chrome/browser/history",
+    "//ios/chrome/browser/passwords",
+    "//ios/chrome/browser/search_engines",
+    "//ios/chrome/browser/sessions",
+    "//ios/chrome/browser/signin",
+    "//ios/chrome/browser/sync",
+    "//ios/net",
+    "//ios/public/provider/chrome/browser",
+    "//ios/web",
+    "//net",
+    "//url",
+  ]
+  allow_circular_includes_from = [ "//ios/chrome/browser/signin" ]
+}
+
+source_set("unit_tests") {
+  testonly = true
+  sources = [
+    "cache_counter_unittest.cc",
+  ]
+  deps = [
+    ":browsing_data",
+    "//base",
+    "//components/browsing_data/core",
+    "//components/prefs",
+    "//components/prefs:test_support",
+    "//ios/web",
+    "//ios/web:test_support",
+    "//net",
+    "//testing/gtest",
+  ]
+}