Revert of Change extension icon load errors to warnings

chrome/common/extensions/manifest_tests/extension_manifests_icons_unittest.cc

 // Copyright (c) 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 "base/memory/linked_ptr.h"
 #include "chrome/common/extensions/manifest_tests/chrome_manifest_test.h"
 #include "extensions/common/constants.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/extension_icon_set.h"
 #include "extensions/common/manifest_handlers/icons_handler.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace extensions {
 
 class IconsManifestTest : public ChromeManifestTest {
 };
 
-// Icons that don't exist on disk should be ignored (for most manifest
-// locations).
-TEST_F(IconsManifestTest, IgnoreNonExistentIcons) {
-  scoped_refptr<extensions::Extension> extension(
-      LoadAndExpectSuccess("normalize_icon_paths.json", Manifest::INTERNAL));
-  const ExtensionIconSet& icons = IconsInfo::GetIcons(extension.get());
-
-  EXPECT_EQ("", icons.Get(extension_misc::EXTENSION_ICON_BITTY,
-                          ExtensionIconSet::MATCH_EXACTLY));
-  EXPECT_EQ("", icons.Get(extension_misc::EXTENSION_ICON_MEDIUM,
-                          ExtensionIconSet::MATCH_EXACTLY));
-}
-
 TEST_F(IconsManifestTest, NormalizeIconPaths) {
   scoped_refptr<extensions::Extension> extension(
-      LoadAndExpectSuccess("normalize_icon_paths.json", Manifest::UNPACKED));
+      LoadAndExpectSuccess("normalize_icon_paths.json"));
   const ExtensionIconSet& icons = IconsInfo::GetIcons(extension.get());
 
   EXPECT_EQ("16.png", icons.Get(extension_misc::EXTENSION_ICON_BITTY,
                                 ExtensionIconSet::MATCH_EXACTLY));
   EXPECT_EQ("48.png", icons.Get(extension_misc::EXTENSION_ICON_MEDIUM,
                                 ExtensionIconSet::MATCH_EXACTLY));
 }
 
 TEST_F(IconsManifestTest, IconSizes) {
   scoped_refptr<extensions::Extension> extension(
-      LoadAndExpectSuccess("init_icon_size.json", Manifest::UNPACKED));
+      LoadAndExpectSuccess("init_icon_size.json"));
   const ExtensionIconSet& icons = IconsInfo::GetIcons(extension.get());
 
   EXPECT_EQ("16.png", icons.Get(extension_misc::EXTENSION_ICON_BITTY,
                                 ExtensionIconSet::MATCH_EXACTLY));
   EXPECT_EQ("24.png", icons.Get(extension_misc::EXTENSION_ICON_SMALLISH,
                                 ExtensionIconSet::MATCH_EXACTLY));
   EXPECT_EQ("32.png", icons.Get(extension_misc::EXTENSION_ICON_SMALL,
                                 ExtensionIconSet::MATCH_EXACTLY));
   EXPECT_EQ("48.png", icons.Get(extension_misc::EXTENSION_ICON_MEDIUM,
                                 ExtensionIconSet::MATCH_EXACTLY));
   EXPECT_EQ("128.png", icons.Get(extension_misc::EXTENSION_ICON_LARGE,
                                  ExtensionIconSet::MATCH_EXACTLY));
   EXPECT_EQ("256.png", icons.Get(extension_misc::EXTENSION_ICON_EXTRA_LARGE,
                                  ExtensionIconSet::MATCH_EXACTLY));
   EXPECT_EQ("512.png", icons.Get(extension_misc::EXTENSION_ICON_GIGANTOR,
                                  ExtensionIconSet::MATCH_EXACTLY));
 
   // Any old size will be accepted.
   EXPECT_EQ("300.png", IconsInfo::GetIcons(extension.get())
                            .Get(300, ExtensionIconSet::MATCH_EXACTLY));
 }
 
 }  // namespace extensions