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This change makes all libraries in the Android component build link
successfully (including fixing and enabling libchrome_shell). This also makes
all the libraries link in a component build for Linux, but without bot coverage
for that platform it'll surely regress.

This is almost entirely just fixing some missing/incorrect dependencies and
adding missing source files for Android.

Some targets were depending on an internal source_set/static_library when they
should have been (or already were) depending on the corresponding component. In
these cases, I added some visibility restrictions to those internal targets to
try to prevent those types of dependencies from coming back.

BUG=359249

Review URL: https://codereview.chromium.org/666813002

Cr-Commit-Position: refs/heads/master@{#301386}