Fix 'except' and 'prefer' spelling.

content/browser/appcache/appcache_storage_impl_unittest.cc

 // Copyright 2014 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 <stack>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/file_util.h"
@@ skipping 1394 matching lines @@
 
   void Verify_FindMainResponseWithMultipleHits() {
     EXPECT_EQ(kEntryUrl, delegate()->found_url_);
     EXPECT_EQ(kManifestUrl3, delegate()->found_manifest_url_);
     EXPECT_EQ(3, delegate()->found_cache_id_);
     EXPECT_EQ(3, delegate()->found_group_id_);
     EXPECT_EQ(3, delegate()->found_entry_.response_id());
     EXPECT_TRUE(delegate()->found_entry_.IsExplicit());
     EXPECT_FALSE(delegate()->found_fallback_entry_.has_response_id());
 
-    // Conduct another test perferring kManifestUrl
+    // Conduct another test preferring kManifestUrl
     delegate_.reset(new MockStorageDelegate(this));
     PushNextTask(base::Bind(
         &AppCacheStorageImplTest::Verify_FindMainResponseWithMultipleHits2,
         base::Unretained(this)));
     storage()->FindResponseForMainRequest(kEntryUrl, kManifestUrl, delegate());
     EXPECT_NE(kEntryUrl, delegate()->found_url_);
   }
 
   void Verify_FindMainResponseWithMultipleHits2() {
     EXPECT_EQ(kEntryUrl, delegate()->found_url_);
     EXPECT_EQ(kManifestUrl, delegate()->found_manifest_url_);
     EXPECT_EQ(1, delegate()->found_cache_id_);
     EXPECT_EQ(1, delegate()->found_group_id_);
     EXPECT_EQ(1, delegate()->found_entry_.response_id());
     EXPECT_TRUE(delegate()->found_entry_.IsExplicit());
     EXPECT_FALSE(delegate()->found_fallback_entry_.has_response_id());
 
-    // Conduct the another test perferring kManifestUrl2
+    // Conduct the another test preferring kManifestUrl2
     delegate_.reset(new MockStorageDelegate(this));
     PushNextTask(base::Bind(
         &AppCacheStorageImplTest::Verify_FindMainResponseWithMultipleHits3,
         base::Unretained(this)));
     storage()->FindResponseForMainRequest(kEntryUrl, kManifestUrl2, delegate());
     EXPECT_NE(kEntryUrl, delegate()->found_url_);
   }
 
   void Verify_FindMainResponseWithMultipleHits3() {
     EXPECT_EQ(kEntryUrl, delegate()->found_url_);
@@ skipping 574 matching lines @@
   RunTestOnIOThread(&AppCacheStorageImplTest::Reinitialize2);
 }
 
 TEST_F(AppCacheStorageImplTest, Reinitialize3) {
   RunTestOnIOThread(&AppCacheStorageImplTest::Reinitialize3);
 }
 
 // That's all folks!
 
 }  // namespace content