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Fix errors. Most of the problems were in net. Moves CreateAndConnectStreamForTesting's declaration to the header corresponding to the file it's implemented in.

Adds the other directories that don't pass yet to the list commented out so
it's easier to see what's still left.

TBR=armansito@chromium.org

Review URL: https://codereview.chromium.org/936953004

Cr-Commit-Position: refs/heads/master@{#317425}