Move most importer code to chrome/utility/importer

chrome/chrome_common.gypi

Index: chrome/chrome_common.gypi
diff --git a/chrome/chrome_common.gypi b/chrome/chrome_common.gypi
index 2d8968e4e0cad550f0070276b2378bf96dd3a638..d567154c5d143e606c5d55a824dd3bd49fa204a9 100644
--- a/chrome/chrome_common.gypi
+++ b/chrome/chrome_common.gypi
@@ -328,17 +328,31 @@
         'common/external_ipc_fuzzer.h',
         'common/icon_with_badge_image_source.cc',
         'common/icon_with_badge_image_source.h',
+        'common/importer/firefox_importer_utils.cc',
+        'common/importer/firefox_importer_utils.h',
+        'common/importer/firefox_importer_utils_linux.cc',
+        'common/importer/firefox_importer_utils_mac.mm',
+        'common/importer/firefox_importer_utils_win.cc',
+        'common/importer/ie_importer_test_registry_overrider_win.cc',
+        'common/importer/ie_importer_test_registry_overrider_win.h',
+        'common/importer/ie_importer_utils_win.cc',
+        'common/importer/ie_importer_utils_win.h',
         'common/importer/imported_bookmark_entry.cc',
         'common/importer/imported_bookmark_entry.h',
         'common/importer/imported_favicon_usage.cc',
         'common/importer/imported_favicon_usage.h',
+        'common/importer/importer_bridge.cc',
+        'common/importer/importer_bridge.h',
         'common/importer/importer_data_types.cc',
         'common/importer/importer_data_types.h',
         'common/importer/importer_type.h',
         'common/importer/importer_url_row.cc',
         'common/importer/importer_url_row.h',
+        'common/importer/importer_visit_source.h',
         'common/importer/profile_import_process_messages.cc',
         'common/importer/profile_import_process_messages.h',
+        'common/importer/safari_importer_utils.h',
+        'common/importer/safari_importer_utils.mm',
         'common/instant_restricted_id_cache.h',
         'common/instant_types.cc',
         'common/instant_types.h',