[Cast] Consolidate plethora of GYP files into cast.gyp and cast_testing.gypi.

media/cast/video_sender/codecs/vp8/vp8_encoder.gypi

Index: media/cast/video_sender/codecs/vp8/vp8_encoder.gypi
diff --git a/media/cast/video_sender/codecs/vp8/vp8_encoder.gypi b/media/cast/video_sender/codecs/vp8/vp8_encoder.gypi
deleted file mode 100644
index 4a1a53609aaa19f04b160974ffccbda10c04ad1e..0000000000000000000000000000000000000000
--- a/media/cast/video_sender/codecs/vp8/vp8_encoder.gypi
+++ /dev/null
@@ -1,25 +0,0 @@
-# Copyright 2013 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-{
-  'targets': [
-    {
-      'target_name': 'cast_vp8_encoder',
-      'type': 'static_library',
-      'include_dirs': [
-         '<(DEPTH)/',
-         '<(DEPTH)/third_party/',
-      ],
-      'sources': [
-        'vp8_encoder.cc',
-        'vp8_encoder.h',
-      ], # source
-      'dependencies': [
-        '<(DEPTH)/ui/gfx/gfx.gyp:gfx',
-        '<(DEPTH)/ui/gfx/gfx.gyp:gfx_geometry',
-        '<(DEPTH)/third_party/libvpx/libvpx.gyp:libvpx',
-      ],
-    },
-  ],
-}