Fix a media server crash (bug 1807910): part one
Add a factory method that creates a Camera object from a remote client

Next:
The changes in authordriver.cpp and android_camera_input.cpp will come.
and the constructor for Camera object will be removed.
diff --git a/libs/ui/Camera.cpp b/libs/ui/Camera.cpp
index b3cbda1..0fba82c 100644
--- a/libs/ui/Camera.cpp
+++ b/libs/ui/Camera.cpp
@@ -75,6 +75,19 @@
     }
 }
 
+
+sp<Camera> Camera::create(const sp<ICamera>& camera)
+{
+    sp<Camera> c = new Camera();
+    // connect this client to existing camera remote
+    if (camera->connect(c) == NO_ERROR) {
+        c->mStatus = NO_ERROR;
+        c->mCamera = camera;
+        camera->asBinder()->linkToDeath(c);
+    }
+    return c;
+}
+
 void Camera::init()
 {
     mStatus = UNKNOWN_ERROR;