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diff --git a/gps/core/LocDualContext.h b/gps/core/LocDualContext.h
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+/* Copyright (c) 2011-2013, The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ *       copyright notice, this list of conditions and the following
+ *       disclaimer in the documentation and/or other materials provided
+ *       with the distribution.
+ *     * Neither the name of The Linux Foundation, nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+#ifndef __LOC_ENG_CONTEXT__
+#define __LOC_ENG_CONTEXT__
+
+#include <stdbool.h>
+#include <ctype.h>
+#include <dlfcn.h>
+#include <ContextBase.h>
+
+namespace loc_core {
+
+class LocDualContext : public ContextBase {
+    static const MsgTask* mMsgTask;
+    static ContextBase* mFgContext;
+    static ContextBase* mBgContext;
+
+    static const MsgTask* getMsgTask(MsgTask::tCreate tCreator,
+                                     const char* name);
+    static const MsgTask* getMsgTask(MsgTask::tAssociate tAssociate,
+                                     const char* name);
+
+protected:
+    LocDualContext(const MsgTask* msgTask,
+                   LOC_API_ADAPTER_EVENT_MASK_T exMask);
+    inline virtual ~LocDualContext() {}
+
+public:
+    static const char* mIzatLibName;
+    static const LOC_API_ADAPTER_EVENT_MASK_T mFgExclMask;
+    static const LOC_API_ADAPTER_EVENT_MASK_T mBgExclMask;
+    static const char* mLocationHalName;
+
+    static ContextBase* getLocFgContext(MsgTask::tCreate tCreator,
+                                        const char* name);
+    static ContextBase* getLocFgContext(MsgTask::tAssociate tAssociate,
+                                        const char* name);
+    static ContextBase* getLocBgContext(MsgTask::tCreate tCreator,
+                                        const char* name);
+    static ContextBase* getLocBgContext(MsgTask::tAssociate tAssociate,
+                                        const char* name);
+};
+
+}
+
+#endif //__LOC_ENG_CONTEXT__