Componentize tab_node_pool to sync_driver

components/sync_driver/BUILD.gn

Index: components/sync_driver/BUILD.gn
diff --git a/components/sync_driver/BUILD.gn b/components/sync_driver/BUILD.gn
index bedf6c9ae5dbb4e4166fa95d0fbba819473c513a..f12821f162e53e26e865d24eafeb4fde5277db3e 100644
--- a/components/sync_driver/BUILD.gn
+++ b/components/sync_driver/BUILD.gn
@@ -73,6 +73,8 @@ static_library("sync_driver") {
     "sync_service_observer.h",
     "system_encryptor.cc",
     "system_encryptor.h",
+    "tab_node_pool.cc",
+    "tab_node_pool.h",
     "ui_data_type_controller.cc",
     "ui_data_type_controller.h",
     "user_selectable_sync_type.h",
@@ -93,6 +95,19 @@ static_library("sync_driver") {
   }
 }
 
+source_set("unit_tests") {
+  testonly = true
+  sources = [
+    "tab_node_pool_unittest.cc",
+  ]
+
+  deps = [
+    ":sync_driver",

[droger, 2015/08/10 12:21:20]

Looks like you need also
//base
because the test includes base/logging.h

and probably
//sync
because of sync/api/sync_change.h

[Abhishek, 2015/08/11 08:16:18]

I think we are not using it. So I've removed it.
Done.

+    "//sync:test_support_sync_internal_api",
+    "//testing/gtest",
+  ]
+}
+
 static_library("test_support") {
   testonly = true
   sources = [