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diff --git a/services/camera/libcameraservice/api_pro/ProCamera2Client.h b/services/camera/libcameraservice/api_pro/ProCamera2Client.h
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+++ b/services/camera/libcameraservice/api_pro/ProCamera2Client.h
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+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_SERVERS_CAMERA_PROCAMERA2CLIENT_H
+#define ANDROID_SERVERS_CAMERA_PROCAMERA2CLIENT_H
+
+#include "CameraService.h"
+#include "common/FrameProcessorBase.h"
+#include "common/Camera2ClientBase.h"
+#include "device2/Camera2Device.h"
+
+namespace android {
+
+class IMemory;
+/**
+ * Implements the binder IProCameraUser API,
+ * meant for HAL2-level private API access.
+ */
+class ProCamera2Client :
+        public Camera2ClientBase<CameraService::ProClient>,
+        public camera2::FrameProcessorBase::FilteredListener
+{
+public:
+    /**
+     * IProCameraUser interface (see IProCameraUser for details)
+     */
+    virtual status_t      exclusiveTryLock();
+    virtual status_t      exclusiveLock();
+    virtual status_t      exclusiveUnlock();
+
+    virtual bool          hasExclusiveLock();
+
+    // Note that the callee gets a copy of the metadata.
+    virtual int           submitRequest(camera_metadata_t* metadata,
+                                        bool streaming = false);
+    virtual status_t      cancelRequest(int requestId);
+
+    virtual status_t      deleteStream(int streamId);
+
+    virtual status_t      createStream(
+            int width,
+            int height,
+            int format,
+            const sp<IGraphicBufferProducer>& bufferProducer,
+            /*out*/
+            int* streamId);
+
+    // Create a request object from a template.
+    // -- Caller owns the newly allocated metadata
+    virtual status_t      createDefaultRequest(int templateId,
+                                               /*out*/
+                                               camera_metadata** request);
+
+    // Get the static metadata for the camera
+    // -- Caller owns the newly allocated metadata
+    virtual status_t      getCameraInfo(int cameraId,
+                                        /*out*/
+                                        camera_metadata** info);
+
+    /**
+     * Interface used by CameraService
+     */
+
+    ProCamera2Client(const sp<CameraService>& cameraService,
+            const sp<IProCameraCallbacks>& remoteCallback,
+            const String16& clientPackageName,
+            int cameraId,
+            int cameraFacing,
+            int clientPid,
+            uid_t clientUid,
+            int servicePid);
+    virtual ~ProCamera2Client();
+
+    virtual status_t      initialize(camera_module_t *module);
+
+    virtual status_t      dump(int fd, const Vector<String16>& args);
+
+    // Callbacks from camera service
+    virtual void onExclusiveLockStolen();
+
+    /**
+     * Interface used by independent components of ProCamera2Client.
+     */
+
+protected:
+    /** FilteredListener implementation **/
+    virtual void          onFrameAvailable(int32_t requestId,
+                                           const CameraMetadata& frame);
+    virtual void          detachDevice();
+
+private:
+    /** IProCameraUser interface-related private members */
+
+    /** Preview callback related members */
+    sp<camera2::FrameProcessorBase> mFrameProcessor;
+    static const int32_t FRAME_PROCESSOR_LISTENER_MIN_ID = 0;
+    static const int32_t FRAME_PROCESSOR_LISTENER_MAX_ID = 0x7fffffffL;
+
+    /** Utility members */
+    bool enforceRequestPermissions(CameraMetadata& metadata);
+
+    // Whether or not we have an exclusive lock on the device
+    // - if no we can't modify the request queue.
+    // note that creating/deleting streams we own is still OK
+    bool mExclusiveLock;
+};
+
+}; // namespace android
+
+#endif