Set user-visible machine names and devices types for synced sessions.

chrome/browser/sync/glue/session_model_associator_mac.mm

Index: chrome/browser/sync/glue/session_model_associator_mac.mm
diff --git a/chrome/browser/sync/glue/session_model_associator_mac.mm b/chrome/browser/sync/glue/session_model_associator_mac.mm
new file mode 100644
index 0000000000000000000000000000000000000000..16635b2ca4854d3cc9c106f2218f5be122bd15fe
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+++ b/chrome/browser/sync/glue/session_model_associator_mac.mm
@@ -0,0 +1,52 @@
+// Copyright (c) 2011 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 "chrome/browser/sync/glue/session_model_associator.h"
+
+#import <Foundation/Foundation.h>
+#import <SystemConfiguration/SCDynamicStoreCopySpecific.h>
+#include <sys/sysctl.h>  // sysctlbyname()
+
+#include "base/mac/foundation_util.h"
+#include "base/mac/mac_util.h"
+#include "base/memory/scoped_nsobject.h"
+#include "base/string_util.h"
+#include "base/sys_info.h"
+#include "base/sys_string_conversions.h"
+
+@interface NSHost(SnowLeopardAPI)
+- (NSString*)localizedName;
+@end
+
+namespace browser_sync {
+
+// Static
+std::string SessionModelAssociator::GetHardwareModelName() {
+  NSHost* myHost = [NSHost currentHost];
+  if ([myHost respondsToSelector:@selector(localizedName)]) {
+    return base::SysNSStringToUTF8([myHost localizedName]);
+  }
+  // Fallback for 10.5
+  scoped_nsobject<NSString> computerName(base::mac::CFToNSCast(
+        SCDynamicStoreCopyComputerName(NULL, NULL)));
+  if (computerName.get() != NULL) {
+    return base::SysNSStringToUTF8(computerName.get());
+  }
+
+  // If all else fails, return to using a slightly nicer version of the
+  // hardware model.
+  char modelBuffer[256];
+  size_t length = sizeof(modelBuffer);
+  if (!sysctlbyname("hw.model", modelBuffer, &length, NULL, 0)) {
+    for (size_t i = 0; i < length; i++) {
+      if (IsAsciiDigit(modelBuffer[i])) {
+        return std::string(modelBuffer, 0, i);
+      }
+    }
+    return std::string(modelBuffer, 0, length);
+  }
+  return "Unknown";
+}
+
+}  // namespace browser_sync