Add support for sending a USB SET_CONFIGURATION request.

chrome/browser/devtools/device/usb/android_usb_browsertest.cc

 // Copyright 2014 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 <algorithm>
 
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/devtools/device/devtools_android_bridge.h"
 #include "chrome/browser/devtools/device/usb/android_usb_device.h"
 #include "chrome/browser/devtools/device/usb/usb_device_provider.h"
@@ skipping 158 matching lines @@
         last_local_socket_(0),
         broken_(false) {
   }
 
   virtual scoped_refptr<UsbDevice> GetDevice() const override {
     return device_;
   }
 
   virtual void Close() override { device_ = nullptr; }
 
+  bool SetConfiguration(int configuration_value) override { return true; }
+
   bool ClaimInterface(int interface_number) override {
     if (device_->claimed_interfaces_.find(interface_number) !=
         device_->claimed_interfaces_.end())
       return false;
 
     device_->claimed_interfaces_.insert(interface_number);
     return true;
   }
 
   bool ReleaseInterface(int interface_number) override {
@@ skipping 275 matching lines @@
     interface_desc.endpoints.push_back(bulk_in);
     interface_desc.endpoints.push_back(bulk_out);
 
     config_desc_.interfaces.push_back(interface_desc);
   }
 
   virtual scoped_refptr<UsbDeviceHandle> Open() override {
     return new MockUsbDeviceHandle<T>(this);
   }
 
-  virtual const UsbConfigDescriptor& GetConfiguration() override {
-    return config_desc_;
+  virtual const UsbConfigDescriptor* GetConfiguration() override {
+    return &config_desc_;
   }
 
   virtual bool GetManufacturer(base::string16* manufacturer) override {
     *manufacturer = base::UTF8ToUTF16(kDeviceManufacturer);
     return true;
   }
 
   virtual bool GetProduct(base::string16* product) override {
     *product = base::UTF8ToUTF16(kDeviceModel);
     return true;
@@ skipping 406 matching lines @@
   runner_->Run();
   EXPECT_EQ(2, listener.invoked_);
   EXPECT_EQ(listener.invoked_ - 1, scheduler_invoked_);
 }
 
 IN_PROC_BROWSER_TEST_F(AndroidUsbTraitsTest, TestDeviceCounting) {
   MockCountListenerForCheckingTraits listener(adb_bridge_);
   adb_bridge_->AddDeviceCountListener(&listener);
   runner_->Run();
 }