[Sync] Move 'sync' target to sync/

Also move related test files.

Move WriteNode::UpdateEntryWithEncryption to nigori_util.h.

Clean up defines and dependencies.  In particular, get rid of SYNC_ENGINE_VERSION_STRING and hard-code the string in the single place it's used.

Rename data_encryption.* to data_encryption_win.* and add a pragma for crypt32.lib.

Clean up exit-time constructor warnings in sync{able,er}_unittest.cc.

Remove some unused files.

BUG=117585
TEST=
TBR=jhawkins@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9699057

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@126872 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 53 insertions, 0 deletions

diff --git a/sync/util/extensions_activity_monitor.h b/sync/util/extensions_activity_monitor.h
new file mode 100644
index 0000000..9a5fdef
--- /dev/null
+++ b/sync/util/extensions_activity_monitor.h
@@ -0,0 +1,53 @@
+// Copyright (c) 2012 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.
+
+#ifndef SYNC_UTIL_EXTENSIONS_ACTIVITY_MONITOR_H_
+#define SYNC_UTIL_EXTENSIONS_ACTIVITY_MONITOR_H_
+#pragma once
+
+#include <map>
+#include <string>
+
+#include "base/basictypes.h"
+
+namespace browser_sync {
+
+// An interface to monitor usage of extensions APIs to send to sync
+// servers, with the ability to purge data once sync servers have
+// acknowledged it (successful commit response).
+//
+// All abstract methods are called from the sync thread.
+class ExtensionsActivityMonitor {
+ public:
+  // A data record of activity performed by extension |extension_id|.
+  struct Record {
+    Record();
+    ~Record();
+
+    // The human-readable ID identifying the extension responsible
+    // for the activity reported in this Record.
+    std::string extension_id;
+
+    // How many times the extension successfully invoked a write
+    // operation through the bookmarks API since the last CommitMessage.
+    uint32 bookmark_write_count;
+  };
+
+  typedef std::map<std::string, Record> Records;
+
+  // Fill |buffer| with all current records and then clear the
+  // internal records.
+  virtual void GetAndClearRecords(Records* buffer) = 0;
+
+  // Merge |records| with the current set of records, adding the
+  // bookmark write counts for common Records.
+  virtual void PutRecords(const Records& records) = 0;
+
+ protected:
+  virtual ~ExtensionsActivityMonitor();
+};
+
+}  // namespace browser_sync
+
+#endif  // SYNC_UTIL_EXTENSIONS_ACTIVITY_MONITOR_H_