device/generic_sensor contains the platform-specific parts of the Sensor APIs implementation.
Sensors Mojo interfaces are defined in the public/interfaces subdirectory.
The JS bindings are implemented in third_party/WebKit/Source/modules/sensor.
Sensors platform unit tests are located in the current directory and its subdirectories.
The sensors unit tests file for Android is android/junit/src/org/chromium/device/sensors/PlatformSensorAndProviderTest.java.
Sensors browser tests are located in content/test/data/generic_sensor.
Please refer to the design documentation for more details.