In the DigitalOptics' PDF brochure about the wonders of its MEMS phone camera module, IMX179 is listed as the sensor only, not the whole module, alongside another sensor alternative we are spotting there - OV8835. A quick search returns that under these codenames we get two phone camera sensors - OmniVision's 8 MP OV8835, and Sony's IMX179...
Source: http://www.phonearena.com/news/Nexus-5-might-not-feature-a-MEMS-camera-after-all-just-a-Sony-IMX179-sensor_id47942
Source: http://www.phonearena.com/news/Nexus-5-might-not-feature-a-MEMS-camera-after-all-just-a-Sony-IMX179-sensor_id47942