IndexedDB: Fix trivial cpplint.py errors

content/browser/indexed_db/leveldb/leveldb_database.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 "content/browser/indexed_db/leveldb/leveldb_database.h"
 
 #include <cerrno>
 
 #include "base/basictypes.h"
 #include "base/files/file.h"
@@ skipping 109 matching lines @@
  public:
   explicit LockImpl(leveldb::Env* env, leveldb::FileLock* lock)
       : env_(env), lock_(lock) {}
   virtual ~LockImpl() { env_->UnlockFile(lock_); }
  private:
   leveldb::Env* env_;
   leveldb::FileLock* lock_;
 
   DISALLOW_COPY_AND_ASSIGN(LockImpl);
 };
-}
+}  // namespace
 
 scoped_ptr<LevelDBLock> LevelDBDatabase::LockForTesting(
     const base::FilePath& file_name) {
   leveldb::Env* env = leveldb::IDBEnv();
   base::FilePath lock_path = file_name.AppendASCII("LOCK");
   leveldb::FileLock* lock = NULL;
   leveldb::Status status = env->LockFile(lock_path.AsUTF8Unsafe(), &lock);
   if (!status.ok())
     return scoped_ptr<LevelDBLock>();
   DCHECK(lock);
@@ skipping 42 matching lines @@
   base::LinearHistogram::FactoryGet(
       method_histogram_name,
       1,
       leveldb_env::kNumEntries,
       leveldb_env::kNumEntries + 1,
       base::HistogramBase::kUmaTargetedHistogramFlag)->Add(method);
 
   std::string error_histogram_name(histogram_name);
 
   if (result == leveldb_env::METHOD_AND_PFE) {
-    DCHECK(error < 0);
+    DCHECK_LT(error, 0);
     error_histogram_name.append(std::string(".PFE.") +
                                 leveldb_env::MethodIDToString(method));
     base::LinearHistogram::FactoryGet(
         error_histogram_name,
         1,
         -base::File::FILE_ERROR_MAX,
         -base::File::FILE_ERROR_MAX + 1,
         base::HistogramBase::kUmaTargetedHistogramFlag)->Add(-error);
   } else if (result == leveldb_env::METHOD_AND_ERRNO) {
     error_histogram_name.append(std::string(".Errno.") +
                                 leveldb_env::MethodIDToString(method));
     base::LinearHistogram::FactoryGet(
         error_histogram_name,
         1,
         ERANGE + 1,
         ERANGE + 2,
         base::HistogramBase::kUmaTargetedHistogramFlag)->Add(error);
   }
 }
 
 static void ParseAndHistogramCorruptionDetails(
     const std::string& histogram_name,
     const leveldb::Status& status) {
   int error = leveldb_env::GetCorruptionCode(status);
-  DCHECK(error >= 0);
+  DCHECK_GE(error, 0);
   std::string corruption_histogram_name(histogram_name);
   corruption_histogram_name.append(".Corruption");
   const int kNumPatterns = leveldb_env::GetNumCorruptionCodes();
   base::LinearHistogram::FactoryGet(
       corruption_histogram_name,
       1,
       kNumPatterns,
       kNumPatterns + 1,
       base::HistogramBase::kUmaTargetedHistogramFlag)->Add(error);
 }
@@ skipping 160 matching lines @@
 
  private:
   friend class content::LevelDBDatabase;
   explicit IteratorImpl(scoped_ptr<leveldb::Iterator> iterator);
   void CheckStatus();
 
   scoped_ptr<leveldb::Iterator> iterator_;
 
   DISALLOW_COPY_AND_ASSIGN(IteratorImpl);
 };
-}
+}  // namespace
 
 IteratorImpl::IteratorImpl(scoped_ptr<leveldb::Iterator> it)
     : iterator_(it.Pass()) {}
 
 void IteratorImpl::CheckStatus() {
   const leveldb::Status& s = iterator_->status();
   if (!s.ok())
     LOG(ERROR) << "LevelDB iterator error: " << s.ToString();
 }
 
@@ skipping 53 matching lines @@
 void LevelDBDatabase::Compact(const base::StringPiece& start,
                               const base::StringPiece& stop) {
   const leveldb::Slice start_slice = MakeSlice(start);
   const leveldb::Slice stop_slice = MakeSlice(stop);
   db_->CompactRange(&start_slice, &stop_slice);
 }
 
 void LevelDBDatabase::CompactAll() { db_->CompactRange(NULL, NULL); }
 
 }  // namespace content