Reland "Add check_deps rules in DEPS files."

DEPS

 # This file contains dependencies for WebRTC that are not shared with Chromium.
 # If you wish to add a dependency that is present in Chromium's src/DEPS or a
 # directory from the Chromium checkout, you should add it to setup_links.py
 # instead.
 
 vars = {
   'extra_gyp_flag': '-Dextra_gyp_flag=0',
   'chromium_git': 'https://chromium.googlesource.com',
   'chromium_revision': 'a31042286f1978cfed1546b500db62a96fa9e5c6',
 }
 
 # NOTE: Use http rather than https; the latter can cause problems for users
 # behind proxies.
 deps = {
   'src/third_party/gflags/src':
     Var('chromium_git') + '/external/github.com/gflags/gflags@03bebcb065c83beff83d50ae025a55a4bf94dfca',
 }
 
 deps_os = {
   'win': {
     'src/third_party/winsdk_samples/src':
       Var('chromium_git') + '/external/webrtc/deps/third_party/winsdk_samples_v71@e71b549167a665d7424d6f1dadfbff4b4aad1589',
   },
 }
 
-# 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',
-  '+net',
-  '+talk',
-  '+testing',
-  '+third_party',
-  '+unicode',
-  '+usrsctplib',
-  '+webrtc',
-  '+vpx',
-]
-
 hooks = [
   {
     # Check for legacy named top-level dir (named 'trunk').
     'name': 'check_root_dir_name',
     'pattern': '.',
     'action': ['python','-c',
                ('import os,sys;'
                 'script = os.path.join("trunk","check_root_dir.py");'
                 '_ = os.system("%s %s" % (sys.executable,script)) '
                 'if os.path.exists(script) else 0')],
@@ skipping 49 matching lines @@
   },
   {
     # A change to a .gyp, .gypi, or to GYP itself should run the generator.
     'name': 'gyp',
     'pattern': '.',
     'action': ['python', 'src/webrtc/build/gyp_webrtc',
                Var('extra_gyp_flag')],
   },
 ]