Maybe instead, how do I view all files from my nexus when plugging into pc? It shows that there is about 6 GB of files, when plugged in via USB, but searching the folders I can see, its only about 1 GB.
I'm still not sure what you're after. Your chrome history/bookmarks, etc (cache) is available on your PC chrome browser through login syncing function. You may need root access to find the files. I'll check that in a bit.