Allow InProcessExampleBrowser to use a malloc allocated memory block, instead of system shared memory.

Make shared memory client/server a bit more robust, in case the server is terminated early.

examples/SharedMemory/PhysicsClientSharedMemory.h

@@ -10,6 +10,8 @@ class PhysicsClientSharedMemory : public PhysicsClient {
     struct PhysicsClientSharedMemoryInternalData* m_data;
 
 protected:
+	virtual void setSharedMemoryInterface(class SharedMemoryInterface* sharedMem);
+
 public:
     PhysicsClientSharedMemory();
     virtual ~PhysicsClientSharedMemory();