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 3059a90e07f4afb05e7706e65c6e71bf22074f30..22b88f0a50a38dc5eed0c54f58e3d5e647390557 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_scheme_classifier.h',
@@ -26,6 +28,7 @@
       ],
     },
     {
+      # GN version: //components/autocomplete:test_support
       'target_name': 'autocomplete_test_support',
       'type': 'static_library',
       'dependencies': [
@@ -37,6 +40,7 @@
         '..',
       ],
       'sources': [
+        # Note: sources list duplicated in GN build.
         'autocomplete/test_scheme_classifier.cc',
         'autocomplete/test_scheme_classifier.h',
       ],