Move the webrtc/test/test_support/metrics sources into test_support[_unittests] targets. This is essentially reverting https://webrtc-codereview.appspot.com/5789004 and moving these sources back to the right target. Add missing foreman_cif.yuv resource needed for these tests. For MIPS, a compile error was surfacing for logcat_trace_context.h when flipping bot to GN, which was fixed. BUG=webrtc:5949 NOTRY=True Review-Url: https://codereview.webrtc.org/2267113002 Cr-Commit-Position: refs/heads/master@{#13860}