Add components and CLD to GN build.

components/autocomplete.gypi

Index: components/autocomplete.gypi
diff --git a/components/autocomplete.gypi b/components/autocomplete.gypi
index 59f95edbd1ced5f89f79e03a3bb611e0e8f05baa..e20a379e24a822f9f1d0a7774f2fa3be49c5ab20 100644
--- a/components/autocomplete.gypi
+++ b/components/autocomplete.gypi
@@ -5,6 +5,7 @@
 {
   'targets': [
     {
+      # GN version: //components/autocomplete
       'target_name': 'autocomplete',
       'type': 'static_library',
       'dependencies': [
@@ -18,6 +19,7 @@
         '..',
       ],
       'sources': [
+        # Note: sources list duplicated in GN build.
         'autocomplete/autocomplete_input.cc',
         'autocomplete/autocomplete_input.h',
         'autocomplete/autocomplete_match_type.cc',
@@ -28,6 +30,7 @@
       ],
     },
     {
+      # GN version: //components/autocomplete:test_support
       'target_name': 'autocomplete_test_support',
       'type': 'static_library',
       'dependencies': [
@@ -39,6 +42,7 @@
         '..',
       ],
       'sources': [
+        # Note: sources list duplicated in GN build.
         'autocomplete/test_scheme_classifier.cc',
         'autocomplete/test_scheme_classifier.h',
       ],