Revert of Created new Windows LevelDB environment.

third_party/leveldatabase/env_chromium.h

Index: third_party/leveldatabase/env_chromium.h
diff --git a/third_party/leveldatabase/env_chromium.h b/third_party/leveldatabase/env_chromium.h
index 916cb7df2f45b50b70648b8c36dfef4cd5bb8be5..d6f9c2451b43d5a1ab1219696e50f0f34eff9dff 100644
--- a/third_party/leveldatabase/env_chromium.h
+++ b/third_party/leveldatabase/env_chromium.h
@@ -11,7 +11,10 @@
 
 #include "base/metrics/histogram.h"
 #include "base/platform_file.h"
+#include "base/synchronization/condition_variable.h"
 #include "leveldb/env.h"
+#include "leveldb/slice.h"
+#include "leveldb/status.h"
 #include "port/port_chromium.h"
 #include "util/mutexlock.h"
 
@@ -98,18 +101,51 @@
   virtual void DidSyncDir(const std::string& fname) = 0;
 };
 
+class ChromiumWritableFile : public leveldb::WritableFile {
+ public:
+  ChromiumWritableFile(const std::string& fname,
+                       FILE* f,
+                       const UMALogger* uma_logger,
+                       WriteTracker* tracker,
+                       bool make_backup);
+  virtual ~ChromiumWritableFile();
+  virtual leveldb::Status Append(const leveldb::Slice& data);
+  virtual leveldb::Status Close();
+  virtual leveldb::Status Flush();
+  virtual leveldb::Status Sync();
+
+ private:
+  enum Type {
+    kManifest,
+    kTable,
+    kOther
+  };
+  leveldb::Status SyncParent();
+
+  std::string filename_;
+  FILE* file_;
+  const UMALogger* uma_logger_;
+  WriteTracker* tracker_;
+  Type file_type_;
+  std::string parent_dir_;
+  bool make_backup_;
+};
+
 class ChromiumEnv : public leveldb::Env,
                     public UMALogger,
                     public RetrierProvider,
                     public WriteTracker {
  public:
-  static bool MakeBackup(const std::string& fname);
-  static base::FilePath CreateFilePath(const std::string& file_path);
-  static const char* PlatformFileErrorString(
-      const ::base::PlatformFileError& error);
-  static bool HasTableExtension(const base::FilePath& path);
+  ChromiumEnv();
   virtual ~ChromiumEnv();
 
+  virtual leveldb::Status NewSequentialFile(const std::string& fname,
+                                            leveldb::SequentialFile** result);
+  virtual leveldb::Status NewRandomAccessFile(
+      const std::string& fname,
+      leveldb::RandomAccessFile** result);
+  virtual leveldb::Status NewWritableFile(const std::string& fname,
+                                          leveldb::WritableFile** result);
   virtual bool FileExists(const std::string& fname);
   virtual leveldb::Status GetChildren(const std::string& dir,
                                       std::vector<std::string>* result);
@@ -125,24 +161,15 @@
   virtual void Schedule(void (*function)(void*), void* arg);
   virtual void StartThread(void (*function)(void* arg), void* arg);
   virtual leveldb::Status GetTestDirectory(std::string* path);
+  virtual leveldb::Status NewLogger(const std::string& fname,
+                                    leveldb::Logger** result);
   virtual uint64_t NowMicros();
   virtual void SleepForMicroseconds(int micros);
 
  protected:
-  ChromiumEnv();
-
   virtual void DidCreateNewFile(const std::string& fname);
   virtual bool DoesDirNeedSync(const std::string& fname);
   virtual void DidSyncDir(const std::string& fname);
-  virtual base::PlatformFileError GetDirectoryEntries(
-      const base::FilePath& dir_param,
-      std::vector<base::FilePath>* result) const = 0;
-  virtual void RecordErrorAt(MethodID method) const;
-  virtual void RecordOSError(MethodID method, int saved_errno) const;
-  virtual void RecordOSError(MethodID method,
-                             base::PlatformFileError error) const;
-  base::HistogramBase* GetMaxFDHistogram(const std::string& type) const;
-  base::HistogramBase* GetOSErrorHistogram(MethodID method, int limit) const;
 
   std::string name_;
   bool make_backup_;
@@ -175,12 +202,19 @@
     reinterpret_cast<ChromiumEnv*>(arg)->BGThread();
   }
 
+  virtual void RecordErrorAt(MethodID method) const;
+  virtual void RecordOSError(MethodID method, int saved_errno) const;
+  virtual void RecordOSError(MethodID method,
+                             base::PlatformFileError error) const;
   virtual void RecordBackupResult(bool result) const;
   void RestoreIfNecessary(const std::string& dir,
                           std::vector<std::string>* children);
   base::FilePath RestoreFromBackup(const base::FilePath& base_name);
+  void RecordOpenFilesLimit(const std::string& type);
   void RecordLockFileAncestors(int num_missing_ancestors) const;
+  base::HistogramBase* GetOSErrorHistogram(MethodID method, int limit) const;
   base::HistogramBase* GetMethodIOErrorHistogram() const;
+  base::HistogramBase* GetMaxFDHistogram(const std::string& type) const;
   base::HistogramBase* GetLockFileAncestorHistogram() const;
 
   // RetrierProvider implementation.