Treat unknown MIME type as application/octet-stream when launching apps.

chrome/browser/extensions/platform_app_browsertest.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 "base/bind.h"
 #include "base/file_util.h"
 #include "base/prefs/pref_service.h"
 #include "base/test/test_timeouts.h"
 #include "base/threading/platform_thread.h"
 #include "base/utf_string_conversions.h"
@@ skipping 443 matching lines @@
 }
 
 // Tests that no launch data is sent through if the platform app does not
 // provide an intent.
 IN_PROC_BROWSER_TEST_F(PlatformAppBrowserTest, LaunchWithNoIntent) {
   SetCommandLineArg(kTestFilePath);
   ASSERT_TRUE(RunPlatformAppTest("platform_apps/launch_no_intent"))
       << message_;
 }
 
-// Tests that no launch data is sent through if the file MIME type cannot
-// be read.
+// Tests that launch data is sent through with the MIME type set to
+// application/octet-stream if the file MIME type cannot be read.
 IN_PROC_BROWSER_TEST_F(PlatformAppBrowserTest, LaunchNoType) {
   SetCommandLineArg("platform_apps/launch_files/test.unknownextension");
-  ASSERT_TRUE(RunPlatformAppTest("platform_apps/launch_invalid"))
-      << message_;
+  ASSERT_TRUE(RunPlatformAppTest(
+      "platform_apps/launch_application_octet_stream")) << message_;
 }
 
 // Tests that no launch data is sent through if the file does not exist.
 IN_PROC_BROWSER_TEST_F(PlatformAppBrowserTest, LaunchNoFile) {
   SetCommandLineArg("platform_apps/launch_files/doesnotexist.txt");
   ASSERT_TRUE(RunPlatformAppTest("platform_apps/launch_invalid"))
       << message_;
 }
 
 // Tests that no launch data is sent through if the argument is a directory.
@@ skipping 326 matching lines @@
   ASSERT_TRUE(launched_listener.WaitUntilSatisfied());
 
   EXPECT_EQ(1LU, GetShellWindowCount());
   ShellWindowRegistry::ShellWindowSet shell_windows = ShellWindowRegistry::Get(
       browser()->profile())->shell_windows();
   EXPECT_TRUE((*shell_windows.begin())->web_contents()->
       GetRenderWidgetHostView()->HasFocus());
 }
 
 }  // namespace extensions