Move all components/offline_pages/ files into component/offline_pages/core

components/ntp_snippets/BUILD.gn

Index: components/ntp_snippets/BUILD.gn
diff --git a/components/ntp_snippets/BUILD.gn b/components/ntp_snippets/BUILD.gn
index cd1b8c4cdf0fe293c1f9de15e1164493cc13a069..dd6945bdb6bd38206fd90622ddd7ee07cdc203ee 100644
--- a/components/ntp_snippets/BUILD.gn
+++ b/components/ntp_snippets/BUILD.gn
@@ -89,7 +89,7 @@ static_library("ntp_snippets") {
     "//components/image_fetcher",
     "//components/metrics",
     "//components/ntp_snippets/remote/proto",
-    "//components/offline_pages",
+    "//components/offline_pages/core",
     "//components/sessions",
     "//components/strings",
     "//components/sync_sessions",
@@ -140,8 +140,8 @@ source_set("unit_tests") {
     "//components/image_fetcher",
     "//components/leveldb_proto:test_support",
     "//components/ntp_snippets/remote/proto",
-    "//components/offline_pages",
-    "//components/offline_pages:test_support",
+    "//components/offline_pages/core",
+    "//components/offline_pages/core:test_support",
     "//components/sessions",
     "//components/sessions:test_support",
     "//components/signin/core/browser:test_support",
@@ -169,8 +169,8 @@ source_set("test_support") {
   deps = [
     ":ntp_snippets",
     "//base",
-    "//components/offline_pages",
-    "//components/offline_pages:test_support",
+    "//components/offline_pages/core",
+    "//components/offline_pages/core:test_support",
     "//testing/gmock",
   ]
 }