Move operator to namespace "media" (media/base)

When building using jumbo, the call:
s << " decrypt=" << (*decrypt_config_);
in media/base/decoder_buffer.cc does not
find the operator overload in:
media/base/decrypt_config.h
since it is not located within the same
namspace as DecryptConfig.

This commit solves the problem by moving
the operator overload to the namespace.

Bug: 867350
Change-Id: I92073b73cc52ac0bacc7446ce3d1389fef5f6c13
Reviewed-on: https://chromium-review.googlesource.com/1150164
Reviewed-by: Chrome Cunningham (In Paris) <chcunningham@chromium.org>
Commit-Queue: Oscar Johansson <oscarj@opera.com>
Cr-Commit-Position: refs/heads/master@{#578246}
1 file changed