Video capture Android: enable unittests for Camera2 API

media/capture/video/android/video_capture_device_factory_android.h

 // 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.
 
 #ifndef MEDIA_CAPTURE_VIDEO_ANDROID_VIDEO_CAPTURE_DEVICE_FACTORY_ANDROID_H_
 #define MEDIA_CAPTURE_VIDEO_ANDROID_VIDEO_CAPTURE_DEVICE_FACTORY_ANDROID_H_
 
 #include "media/capture/video/video_capture_device_factory.h"
 
 #include <jni.h>
 
 #include "base/android/scoped_java_ref.h"
 #include "base/macros.h"
 #include "media/capture/video/video_capture_device.h"
 
 namespace media {
 
 // VideoCaptureDeviceFactory on Android. This class implements the static
 // VideoCapture methods and the factory of VideoCaptureAndroid.
 class CAPTURE_EXPORT VideoCaptureDeviceFactoryAndroid
     : public VideoCaptureDeviceFactory {
  public:
   static base::android::ScopedJavaLocalRef<jobject> createVideoCaptureAndroid(
       int id,
       jlong nativeVideoCaptureDeviceAndroid);
 
-  VideoCaptureDeviceFactoryAndroid() {}
+  VideoCaptureDeviceFactoryAndroid() : test_mode_(false) {}
   ~VideoCaptureDeviceFactoryAndroid() override {}
 
   std::unique_ptr<VideoCaptureDevice> CreateDevice(
       const VideoCaptureDeviceDescriptor& device_descriptor) override;
   void GetDeviceDescriptors(
       VideoCaptureDeviceDescriptors* device_descriptors) override;
   void GetSupportedFormats(const VideoCaptureDeviceDescriptor& device,
                            VideoCaptureFormats* supported_formats) override;
 
+  static bool IsLegacyOrDeprecatedDevice(const std::string& device_id);
+
+  // Configures all subsequent CreateDevice()s in test mode.
+  void ConfigureForTesting() { test_mode_ = true; }
+
  private:
+  // Switch to indicate that all created Java capturers will be in test mode.
+  bool test_mode_;
+
   DISALLOW_COPY_AND_ASSIGN(VideoCaptureDeviceFactoryAndroid);
 };
 }  // namespace media
 
 #endif  // MEDIA_CAPTURE_VIDEO_ANDROID_VIDEO_CAPTURE_DEVICE_FACTORY_ANDROID_H_