Get all the UsbConfigDescriptor for the device configuration

device/usb/usb_device.h

Index: device/usb/usb_device.h
diff --git a/device/usb/usb_device.h b/device/usb/usb_device.h
index 53087c8c79ddc5e7fb16f1cf1362824a1f9b513a..1fb19ec4598a0409fd3fc8f84e6cfe8db7ac3d59 100644
--- a/device/usb/usb_device.h
+++ b/device/usb/usb_device.h
@@ -5,15 +5,17 @@
 #ifndef DEVICE_USB_USB_DEVICE_H_
 #define DEVICE_USB_USB_DEVICE_H_
 
+#include <vector>
+
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/strings/string16.h"
+#include "device/usb/usb_descriptors.h"
 
 namespace device {
 
 class UsbDeviceHandle;
-struct UsbConfigDescriptor;
 
 // A UsbDevice object represents a detected USB device, providing basic
 // information about it. Methods other than simple property accessors must be
@@ -52,7 +54,12 @@ class UsbDevice : public base::RefCountedThreadSafe<UsbDevice> {
 
   // Gets the UsbConfigDescriptor for the active device configuration or nullptr
   // if the device is unconfigured.
-  virtual const UsbConfigDescriptor* GetConfiguration() = 0;
+  virtual const UsbConfigDescriptor* GetActiveConfiguration() = 0;
+
+  // Gets all the UsbConfigDescriptor for the device configuration.

[Reilly Grant (use Gerrit), 2015/08/03 18:04:04]

"Gets all of the device's UsbConfigDescriptors."

[juncai, 2015/08/03 21:56:25]

Done.

+  const std::vector<UsbConfigDescriptor>& configurations() {
+    return configurations_;
+  }
 
  protected:
   UsbDevice(uint16 vendor_id,
@@ -69,6 +76,9 @@ class UsbDevice : public base::RefCountedThreadSafe<UsbDevice> {
   base::string16 product_string_;
   base::string16 serial_number_;
 
+  // The device's all configuration descriptors.

[Reilly Grant (use Gerrit), 2015/08/03 18:04:04]

"All of the device's configuration descriptors."

[juncai, 2015/08/03 21:56:25]

Done.

+  std::vector<UsbConfigDescriptor> configurations_;
+
  private:
   friend class base::RefCountedThreadSafe<UsbDevice>;