Added WARN_UNUSED_RESULT to ScopedTempDir methods.

chrome/browser/extensions/convert_web_app_unittest.cc

 // Copyright (c) 2010 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/extensions/convert_web_app.h"
 
 #include <string>
 #include <vector>
 
 #include "base/file_path.h"
@@ skipping 92 matching lines @@
   for (size_t i = 0; i < arraysize(sizes); ++i) {
     GURL icon_url(web_app.app_url.Resolve(StringPrintf("%i.png", sizes[i])));
     web_app.icons.push_back(GetIconInfo(icon_url, sizes[i]));
   }
 
   scoped_refptr<Extension> extension = ConvertWebAppToExtension(
       web_app, GetTestTime(1978, 12, 11, 0, 0, 0, 0));
   ASSERT_TRUE(extension.get());
 
   ScopedTempDir extension_dir;
-  extension_dir.Set(extension->path());
+  EXPECT_TRUE(extension_dir.Set(extension->path()));
 
   EXPECT_TRUE(extension->is_app());
   EXPECT_TRUE(extension->is_hosted_app());
   EXPECT_FALSE(extension->is_packaged_app());
 
   EXPECT_EQ("lJqm1+jncOHClAuwif1QxNJKfeV9Fbl9IBZx7FkNwkA=",
             extension->public_key());
   EXPECT_EQ("ncnbaadanljoanockmphfdkimpdedemj", extension->id());
   EXPECT_EQ("1978.12.11.0", extension->version()->GetString());
   EXPECT_EQ(UTF16ToUTF8(web_app.title), extension->name());
@@ skipping 22 matching lines @@
   WebApplicationInfo web_app;
   web_app.manifest_url = GURL("http://aaronboodman.com/gearpad/manifest.json");
   web_app.title = ASCIIToUTF16("Gearpad");
   web_app.app_url = GURL("http://aaronboodman.com/gearpad/");
 
   scoped_refptr<Extension> extension = ConvertWebAppToExtension(
       web_app, GetTestTime(1978, 12, 11, 0, 0, 0, 0));
   ASSERT_TRUE(extension.get());
 
   ScopedTempDir extension_dir;
-  extension_dir.Set(extension->path());
+  EXPECT_TRUE(extension_dir.Set(extension->path()));
 
   EXPECT_TRUE(extension->is_app());
   EXPECT_TRUE(extension->is_hosted_app());
   EXPECT_FALSE(extension->is_packaged_app());
 
   EXPECT_EQ("lJqm1+jncOHClAuwif1QxNJKfeV9Fbl9IBZx7FkNwkA=",
             extension->public_key());
   EXPECT_EQ("ncnbaadanljoanockmphfdkimpdedemj", extension->id());
   EXPECT_EQ("1978.12.11.0", extension->version()->GetString());
   EXPECT_EQ(UTF16ToUTF8(web_app.title), extension->name());
   EXPECT_EQ("", extension->description());
   EXPECT_EQ(web_app.app_url, extension->GetFullLaunchURL());
   EXPECT_EQ(0u, extension->icons().map().size());
   EXPECT_EQ(0u, extension->api_permissions().size());
   ASSERT_EQ(1u, extension->web_extent().patterns().size());
   EXPECT_EQ("*://aaronboodman.com/*",
             extension->web_extent().patterns()[0].GetAsString());
 }