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chrome/browser/android/download/download_manager_service.cc

 // Copyright 2015 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 "chrome/browser/android/download/download_manager_service.h"
 
 #include "base/android/jni_string.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/time/time.h"
 #include "chrome/browser/android/download/download_controller.h"
 #include "chrome/browser/download/download_service.h"
 #include "chrome/browser/download/download_service_factory.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/grit/generated_resources.h"
+#include "components/mime_util/mime_util.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/download_item.h"
 #include "jni/DownloadManagerService_jni.h"
 #include "ui/base/l10n/l10n_util.h"
 
 using base::android::JavaParamRef;
 using base::android::ConvertJavaStringToUTF8;
 using base::android::ConvertUTF8ToJavaString;
 using base::android::ScopedJavaLocalRef;
 
@@ skipping 92 matching lines @@
     jobject obj,
     const JavaParamRef<jstring>& jdownload_guid,
     bool is_off_the_record) {
   std::string download_guid = ConvertJavaStringToUTF8(env, jdownload_guid);
   if (is_history_query_complete_ || is_off_the_record)
     RemoveDownloadInternal(download_guid, is_off_the_record);
   else
     EnqueueDownloadAction(download_guid, REMOVE);
 }
 
+bool DownloadManagerService::IsDownloadOpenableInBrowser(
+    JNIEnv* env,
+    jobject obj,
+    const JavaParamRef<jstring>& jdownload_guid,
+    bool is_off_the_record) {
+  std::string download_guid = ConvertJavaStringToUTF8(env, jdownload_guid);
+  content::DownloadManager* manager = GetDownloadManager(is_off_the_record);
+  if (!manager)
+    return false;
+
+  content::DownloadItem* item = manager->GetDownloadByGuid(download_guid);
+  if (!item)
+    return false;
+
+  return mime_util::IsSupportedMimeType(item->GetMimeType());
+}
+
 void DownloadManagerService::GetAllDownloads(JNIEnv* env,
                                              const JavaParamRef<jobject>& obj,
                                              bool is_off_the_record) {
   if (is_history_query_complete_)
     GetAllDownloadsInternal(is_off_the_record);
   else if (is_off_the_record)
     pending_get_downloads_actions_ |= OFF_THE_RECORD;
   else
     pending_get_downloads_actions_ |= REGULAR;
 }
@@ skipping 247 matching lines @@
   content::DownloadManager* manager =
       content::BrowserContext::GetDownloadManager(profile);
 
   // Update notifiers to monitor any newly created DownloadManagers.
   updateNotifier(
       this, manager,
       is_off_the_record ? off_the_record_notifier_ : original_notifier_);
 
   return manager;
 }