Make chrome_shell_apk build

chrome/chrome_browser.gypi

Index: chrome/chrome_browser.gypi
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index 3dd8d10361dc4fe4dc94e4f2747fa5e6e42aef7a..727d7d3dd04c81753ea6b01b7092169947aaafbf 100644
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -3446,6 +3446,7 @@
     ['OS=="android"', {
       'targets': [
         {
+          # GN: //chrome/browser:jni_headers
           'target_name': 'chrome_browser_jni_headers',
           'type': 'none',
           'sources': [ '<@(chrome_browser_jni_sources)' ],
@@ -3455,6 +3456,7 @@
           'includes': [ '../build/jni_generator.gypi' ],
         },
         {
+          # GN: //chrome/android:activity_type_ids_javagen
           'target_name': 'activity_type_ids_java',
           'type': 'none',
           'sources': [
@@ -3467,6 +3469,7 @@
           'includes': [ '../build/android/java_cpp_template.gypi' ],
         },
         {
+          # GN: //chrome/android:app_banner_metrics_ids_javagen
           'target_name': 'app_banner_metrics_ids_java',
           'type': 'none',
           'sources': [
@@ -3479,6 +3482,7 @@
           'includes': [ '../build/android/java_cpp_template.gypi' ],
         },
         {
+          # GN: //chrome/android:resource_id_javagen
           'target_name': 'resource_id_java',
           'type': 'none',
           'sources': [
@@ -3491,6 +3495,7 @@
           'includes': [ '../build/android/java_cpp_template.gypi' ],
         },
         {
+          # GN: //chrome/android:profile_sync_service_model_type_selection_javagen
           'target_name': 'profile_sync_service_model_type_selection_java',
           'type': 'none',
           'sources': [
@@ -3503,6 +3508,7 @@
           'includes': [ '../build/android/java_cpp_template.gypi' ],
         },
         {
+          # GN: //chrome/android:toolbar_model_security_levels_javagen
           'target_name': 'toolbar_model_security_levels_java',
           'type': 'none',
           'sources': [
@@ -3515,6 +3521,7 @@
           'includes': [ '../build/android/java_cpp_template.gypi' ],
         },
         {
+          # GN: //chrome/android:tab_load_status_javagen
           'target_name': 'tab_load_status_java',
           'type': 'none',
           'sources': [