Add check_deps rules in DEPS files.

webrtc/DEPS

Index: webrtc/DEPS
diff --git a/webrtc/DEPS b/webrtc/DEPS
new file mode 100644
index 0000000000000000000000000000000000000000..292c99685b496b0442dc6360bbae7f6558f13315
--- /dev/null
+++ b/webrtc/DEPS
@@ -0,0 +1,47 @@
+# Define rules for which include paths are allowed in our source.
+include_rules = [
+  # Base is only used to build Android APK tests and may not be referenced by
+  # WebRTC production code.
+  "-base",
+  "-chromium",
+  "+external/webrtc/webrtc",  # Android platform build.
+  "+gflags",
+  "+libyuv",
+  "+testing",
+  "-webrtc",  # Has to be disabled; otherwise all dirs below will be allowed.
+  # Individual headers that will be moved out of here, see webrtc:
+  "+webrtc/audio_receive_stream.h",
+  "+webrtc/audio_send_stream.h",
+  "+webrtc/audio_sink.h",
+  "+webrtc/audio_state.h",
+  "+webrtc/call.h",
+  "+webrtc/common.h",
+  "+webrtc/common_types.h",
+  "+webrtc/config.h",
+  "+webrtc/engine_configurations.h",
+  "+webrtc/frame_callback.h",
+  "+webrtc/stream.h",
+  "+webrtc/transport.h",
+  "+webrtc/typedefs.h",
+  "+webrtc/video_decoder.h",
+  "+webrtc/video_encoder.h",
+  "+webrtc/video_frame.h",
+  "+webrtc/video_receive_stream.h",
+  "+webrtc/video_renderer.h",
+  "+webrtc/video_send_stream.h",
+
+  "+webrtc/base",
+  "+webrtc/modules/include",
+  "+webrtc/test",
+  "+webrtc/tools",
+]
+
+# The below rules will be removed when webrtc: is fixed.
+specific_include_rules = {
+  "audio_send_stream\.h": [
+    "+webrtc/modules/audio_coding",
+  ],
+  "video_frame\.h": [
+    "+webrtc/common_video",
+  ],
+}