Implement clearFormData for WebViewDatabase

android_webview/native/aw_form_database.cc

Index: android_webview/native/aw_form_database.cc
diff --git a/android_webview/native/aw_form_database.cc b/android_webview/native/aw_form_database.cc
new file mode 100644
index 0000000000000000000000000000000000000000..f0d42fdc7cafb8cccb1118cd9082e66643c38415
--- /dev/null
+++ b/android_webview/native/aw_form_database.cc
@@ -0,0 +1,39 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "android_webview/native/aw_form_database.h"
+
+#include "android_webview/browser/aw_browser_context.h"
+#include "android_webview/browser/aw_content_browser_client.h"
+#include "base/android/jni_android.h"
+#include "base/logging.h"
+#include "base/time.h"
+#include "components/autofill/browser/webdata/autofill_webdata_service.h"
+#include "jni/AwFormDatabase_jni.h"
+
+namespace android_webview {
+
+// static
+void ClearFormData(JNIEnv*, jclass) {
+  AwBrowserContext* context = AwContentBrowserClient::GetAwBrowserContext();
+  DCHECK(context);
+
+  autofill::AutofillWebDataService* service =
+      autofill::AutofillWebDataService::FromBrowserContext(context).get();
+  if (service == NULL) {
+    LOG(WARNING) << "No webdata service found, ignoring ClearFormData";
+    return;
+  }
+
+  base::Time begin;
+  base::Time end = base::Time::Max();
+  service->RemoveFormElementsAddedBetween(begin, end);
+  service->RemoveAutofillDataModifiedBetween(begin, end);
+}
+
+bool RegisterFormDatabase(JNIEnv* env) {
+  return RegisterNativesImpl(env) >= 0;
+}
+
+} // namespace android_webview