Clarify which of ::base and ::angle::base is intended

There is a namespace base inside the namespace angle so when
writing code inside angle, "base" is ambigious.

This triggered a compilation failure in some jumbo experiments where
the compiler knew about both ::angle::base and ::base.

There are guides to not name inner namespaces the same as common
top level namespaces for this reason but I guess renaming
angle::base is not an option.

Bug: 864986
Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel
Change-Id: I7c780aea3408d11082a96baa729f2cc0b6dd3247
Reviewed-on: https://chromium-review.googlesource.com/1144936
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Commit-Queue: Daniel Bratell <bratell@opera.com>
Cr-Commit-Position: refs/heads/master@{#576892}
1 file changed