Remove all the browser side extensions code from Android.

chrome/chrome_tests_unit.gypi

Index: chrome/chrome_tests_unit.gypi
diff --git a/chrome/chrome_tests_unit.gypi b/chrome/chrome_tests_unit.gypi
index 7240d307fa33d0a62e61745b472c0ae138b187ec..04792f390816424b2b66ee2d6bc84125dc37e890 100644
--- a/chrome/chrome_tests_unit.gypi
+++ b/chrome/chrome_tests_unit.gypi
@@ -76,24 +76,6 @@
         'browser/download/download_test_file_activity_observer.h',
         'browser/download/test_download_shelf.cc',
         'browser/download/test_download_shelf.h',
-        'browser/extensions/extension_notification_observer.cc',
-        'browser/extensions/extension_notification_observer.h',
-        'browser/extensions/extension_test_message_listener.cc',
-        'browser/extensions/extension_test_message_listener.h',
-        'browser/extensions/mock_extension_special_storage_policy.cc',
-        'browser/extensions/mock_extension_special_storage_policy.h',
-        'browser/extensions/test_blacklist.cc',
-        'browser/extensions/test_blacklist.h',
-        'browser/extensions/test_blacklist_state_fetcher.cc',
-        'browser/extensions/test_blacklist_state_fetcher.h',
-        'browser/extensions/test_extension_environment.cc',
-        'browser/extensions/test_extension_environment.h',
-        'browser/extensions/test_extension_prefs.cc',
-        'browser/extensions/test_extension_prefs.h',
-        'browser/extensions/test_extension_service.cc',
-        'browser/extensions/test_extension_service.h',
-        'browser/extensions/test_extension_system.cc',
-        'browser/extensions/test_extension_system.h',
         'browser/invalidation/fake_invalidation_service.cc',
         'browser/invalidation/fake_invalidation_service.h',
         'browser/media/fake_desktop_media_list.cc',
@@ -364,6 +346,24 @@
             'browser/drive/test_util.h',
             'browser/extensions/api/messaging/native_messaging_test_util.cc',
             'browser/extensions/api/messaging/native_messaging_test_util.h',
+            'browser/extensions/extension_notification_observer.cc',
+            'browser/extensions/extension_notification_observer.h',
+            'browser/extensions/extension_test_message_listener.cc',
+            'browser/extensions/extension_test_message_listener.h',
+            'browser/extensions/mock_extension_special_storage_policy.cc',
+            'browser/extensions/mock_extension_special_storage_policy.h',
+            'browser/extensions/test_blacklist.cc',
+            'browser/extensions/test_blacklist.h',
+            'browser/extensions/test_blacklist_state_fetcher.cc',
+            'browser/extensions/test_blacklist_state_fetcher.h',
+            'browser/extensions/test_extension_environment.cc',
+            'browser/extensions/test_extension_environment.h',
+            'browser/extensions/test_extension_prefs.cc',
+            'browser/extensions/test_extension_prefs.h',
+            'browser/extensions/test_extension_service.cc',
+            'browser/extensions/test_extension_service.h',
+            'browser/extensions/test_extension_system.cc',
+            'browser/extensions/test_extension_system.h',
             'browser/media_galleries/media_galleries_test_util.cc',
             'browser/media_galleries/media_galleries_test_util.h',
           ],
@@ -2062,10 +2062,10 @@
           'sources/': [
             ['exclude', '^../apps/'],
             ['exclude', '^../extensions/'],
+            ['exclude', '^browser/apps/'],
             ['exclude', '^browser/drive/'],
             ['exclude', '^browser/extensions/activity_log/'],
-            ['exclude', '^browser/extensions/api/'],
-            ['exclude', '^browser/extensions/error_console/'],
+            ['exclude', '^browser/extensions/'],
             ['exclude', '^browser/sync/glue/extensions_activity_monitor_unittest.cc'],
             ['exclude', '^browser/sync_file_system/'],
             ['exclude', '^common/extensions/api/'],
@@ -2702,7 +2702,7 @@
             ['exclude', '^browser/supervised_user/'],
           ],
         }],
-        ['safe_browsing==1', {
+        ['safe_browsing==1 and enable_extensions==1', {
           'sources': [
             'browser/extensions/blacklist_unittest.cc',
           ],