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

ios/chrome/browser/rlz/BUILD.gn

Index: ios/chrome/browser/rlz/BUILD.gn
diff --git a/ios/chrome/browser/rlz/BUILD.gn b/ios/chrome/browser/rlz/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..602e9177d2411ffa63c600b2eadf322b96a77f5a
--- /dev/null
+++ b/ios/chrome/browser/rlz/BUILD.gn
@@ -0,0 +1,21 @@
+# 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("rlz") {

[rohitrao (ping after 24h), 2016/10/25 19:48:53]

Should this whole target be behind enable_rlz?

[sdefresne, 2016/10/25 21:10:23]

No, in general we avoid putting targets behind if(). This allow for example to
write unit tests for it, even if the support is disabled in the app. And if no
target depend on it, the file will not be loaded and the target won't be
defined.

+  sources = [
+    "rlz_tracker_delegate_impl.cc",
+    "rlz_tracker_delegate_impl.h",
+  ]
+  deps = [
+    "//base",
+    "//components/omnibox/browser",
+    "//components/rlz",
+    "//components/search_engines",
+    "//ios/chrome/browser:browser_no_public_deps",
+    "//ios/chrome/browser/browser_state",
+    "//ios/chrome/browser/google",
+    "//ios/chrome/browser/search_engines",
+    "//ios/web",
+  ]
+}