See crash/697b3a0400000000:

Thread 0 CRASHED [SIGABRT @ 0x000027a1000013f1 ] MAGIC SIGNATURE THREAD
0x0000007f830b5af4	(libc.so + 0x0006aaf4 )	
0x0000007f830b3284	(libc.so + 0x00068284 )	
0x0000007f8306c278	(libc.so + 0x00021278 )	
0x0000007f83066a18	(libc.so + 0x0001ba18 )	
0x0000007f7fe35538		
0x0000007f7fb3a224		
0x0000007f7fd107f8		
0x0000007f7fd10d94		
0x0000007f7fd459d8		
0x0000007f550f38b4	(libchrome.so -jni.h:864 )	base::android::ConvertJavaStringToUTF8
0x0000007f5268d534	(libchrome.so -website_preference_bridge.cc:759 )	Java_org_chromium_chrome_browser_preferences_website_WebsitePreferenceBridge_nativeClearCookieData
0x0000007f6be93c34	(base.odex + 0x00224c34 )

It looks like this is coming from either SingleWebsitePreferences.resetSite() or LocalStorageInfo.clear() and the origin parameter is null.