SendStartMessage 38 content/renderer/device_orientation/device_motion_event_pump.h virtual bool SendStartMessage() OVERRIDE; SendStartMessage 42 content/renderer/device_orientation/device_orientation_event_pump.h virtual bool SendStartMessage() OVERRIDE; SendStartMessage 43 content/renderer/device_orientation/device_sensor_event_pump.cc if (SendStartMessage()) { SendStartMessage 50 content/renderer/device_orientation/device_sensor_event_pump.h virtual bool SendStartMessage() = 0;