Splitting MediaStreamDescriptor.h and MediaStreamComponent.h into .h and .cpp
What one were two simple classes have grown and now needs a split into a header
and a implementation file. These files will go through some work soon as well.

Review URL: https://chromiumcodereview.appspot.com/14989002

git-svn-id: svn://svn.chromium.org/blink/trunk@149778 bbb929c8-8fbe-4397-9dbb-9b2b20218538
6 files changed