Mark HID and USB device connections as non-persistent API resources.

extensions/browser/api/hid/hid_connection_resource.h

Index: extensions/browser/api/hid/hid_connection_resource.h
diff --git a/extensions/browser/api/hid/hid_connection_resource.h b/extensions/browser/api/hid/hid_connection_resource.h
index 13d6a116b6beaf7e08790ea02395b902c7ac2958..9c9dc6cceea95cb2077d1cc498ebbe98377f8e3d 100644
--- a/extensions/browser/api/hid/hid_connection_resource.h
+++ b/extensions/browser/api/hid/hid_connection_resource.h
@@ -13,10 +13,17 @@
 #include "extensions/browser/api/api_resource.h"
 #include "extensions/browser/api/api_resource_manager.h"
 
+namespace device {
+class HidConnection;
+}
+
 namespace extensions {
 
 class HidConnectionResource : public ApiResource {
  public:
+  static const content::BrowserThread::ID kThreadId =
+      content::BrowserThread::FILE;
+
   HidConnectionResource(const std::string& owner_extension_id,
                         scoped_refptr<device::HidConnection> connection);
   virtual ~HidConnectionResource();
@@ -25,10 +32,9 @@ class HidConnectionResource : public ApiResource {
     return connection_;
   }
 
-  static const char* service_name() { return "HidConnectionResourceManager"; }
+  virtual bool IsPersistent() const OVERRIDE;
 
-  static const content::BrowserThread::ID kThreadId =
-      content::BrowserThread::FILE;
+  static const char* service_name() { return "HidConnectionResourceManager"; }
 
  private:
   scoped_refptr<device::HidConnection> connection_;