Move JS-related password manager code upstream

ios/chrome/ios_chrome.gyp

Index: ios/chrome/ios_chrome.gyp
diff --git a/ios/chrome/ios_chrome.gyp b/ios/chrome/ios_chrome.gyp
index c800d46c01e6b8d5e9e508270af77feb05a561fa..2af83dd495ce5da3559eea8de4bea5322c2c6029 100644
--- a/ios/chrome/ios_chrome.gyp
+++ b/ios/chrome/ios_chrome.gyp
@@ -351,10 +351,16 @@
         'browser/net/retryable_url_fetcher.mm',
         'browser/open_from_clipboard/create_clipboard_recent_content.h',
         'browser/open_from_clipboard/create_clipboard_recent_content.mm',
+        'browser/passwords/credential_manager.h',
+        'browser/passwords/credential_manager.mm',
         'browser/passwords/ios_chrome_password_manager_setting_migrator_service_factory.cc',
         'browser/passwords/ios_chrome_password_manager_setting_migrator_service_factory.h',
         'browser/passwords/ios_chrome_password_store_factory.cc',
         'browser/passwords/ios_chrome_password_store_factory.h',
+        'browser/passwords/js_credential_manager.h',
+        'browser/passwords/js_credential_manager.mm',
+        'browser/passwords/js_password_manager.h',
+        'browser/passwords/js_password_manager.mm',
         'browser/passwords/password_generation_edit_view.h',
         'browser/passwords/password_generation_edit_view.mm',
         'browser/passwords/password_generation_offer_view.h',
@@ -606,11 +612,15 @@
       'type': 'none',
       'sources': [
         'browser/find_in_page/resources/find_in_page.js',
+        'browser/passwords/resources/credential_manager.js',
+        'browser/passwords/resources/password_controller.js',
       ],
       'includes': [ '../../ios/web/js_compile.gypi' ],
       'link_settings': {
         'mac_bundle_resources': [
+          '<(SHARED_INTERMEDIATE_DIR)/credential_manager.js',
           '<(SHARED_INTERMEDIATE_DIR)/find_in_page.js',
+          '<(SHARED_INTERMEDIATE_DIR)/password_controller.js',
         ],
       },
     },