Implement PlatformUtil::OpenExternal() so that mailto: can work

chrome/browser/platform_util_android.cc

 // Copyright (c) 2012 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 <jni.h>
+
+#include "base/android/jni_android.h"
+#include "base/android/jni_string.h"
 #include "base/logging.h"
 #include "chrome/browser/platform_util.h"
+#include "jni/PlatformUtil_jni.h"
 #include "ui/android/view_android.h"
+#include "url/gurl.h"
 
 namespace platform_util {
 
 // TODO: crbug/115682 to track implementation of the following methods.
 
 void ShowItemInFolder(Profile* profile, const base::FilePath& full_path) {
   NOTIMPLEMENTED();
 }
 
 void OpenItem(Profile* profile,
               const base::FilePath& full_path,
               OpenItemType item_type,
               const OpenOperationCallback& callback) {
   NOTIMPLEMENTED();
 }
 
 void OpenExternal(Profile* profile, const GURL& url) {
-  NOTIMPLEMENTED();
+  JNIEnv* env = base::android::AttachCurrentThread();
+  ScopedJavaLocalRef<jstring> j_url =
+      base::android::ConvertUTF8ToJavaString(env, url.spec());
+  Java_PlatformUtil_launchExternalProtocol(env, j_url.obj());
 }
 
 gfx::NativeWindow GetTopLevel(gfx::NativeView view) {
   NOTIMPLEMENTED();
   return view->GetWindowAndroid();
 }
 
 gfx::NativeView GetParent(gfx::NativeView view) {
   NOTIMPLEMENTED();
   return view;
 }
 
 bool IsWindowActive(gfx::NativeWindow window) {
   NOTIMPLEMENTED();
   return false;
 }
 
 void ActivateWindow(gfx::NativeWindow window) {
   NOTIMPLEMENTED();
 }
 
 bool IsVisible(gfx::NativeView view) {
   NOTIMPLEMENTED();
   return true;
 }
 
+bool RegisterPlatformUtil(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+

[sky, 2015/09/08 15:09:14]

nit: only one newline here.

+
 } // namespace platform_util