Convert HidDeviceInfo from a struct to a refcounted class.

device/hid/hid_connection.h

Index: device/hid/hid_connection.h
diff --git a/device/hid/hid_connection.h b/device/hid/hid_connection.h
index 8c1bc0dc44b1f727b2d142ef093f790f5de703d6..1c7107580e994c1fff827bff7a4c24598fb6b38d 100644
--- a/device/hid/hid_connection.h
+++ b/device/hid/hid_connection.h
@@ -27,7 +27,7 @@ class HidConnection : public base::RefCountedThreadSafe<HidConnection> {
       ReadCallback;
   typedef base::Callback<void(bool success)> WriteCallback;
 
-  const HidDeviceInfo& device_info() const { return device_info_; }
+  scoped_refptr<HidDeviceInfo> device_info() const { return device_info_; }
   bool has_protected_collection() const { return has_protected_collection_; }
   const base::ThreadChecker& thread_checker() const { return thread_checker_; }
   bool closed() const { return closed_; }
@@ -59,7 +59,7 @@ class HidConnection : public base::RefCountedThreadSafe<HidConnection> {
  protected:
   friend class base::RefCountedThreadSafe<HidConnection>;
 
-  explicit HidConnection(const HidDeviceInfo& device_info);
+  explicit HidConnection(scoped_refptr<HidDeviceInfo> device_info);
   virtual ~HidConnection();
 
   virtual void PlatformClose() = 0;
@@ -85,7 +85,7 @@ class HidConnection : public base::RefCountedThreadSafe<HidConnection> {
  private:
   bool IsReportIdProtected(uint8_t report_id);
 
-  const HidDeviceInfo device_info_;
+  scoped_refptr<HidDeviceInfo> device_info_;
   bool has_protected_collection_;
   base::ThreadChecker thread_checker_;
   bool closed_;