(4) Rename files to snake_case: update BUILD.gn, include paths, header guards, and DEPS entries

Mechanically generated by running this command:

tools_webrtc/do-renames.sh update all-renames.txt && git cl format

Then manually updating:

tools_webrtc/sanitizers/tsan_suppressions_webrtc.cc

Bug: webrtc:10159
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Change-Id: I54824cd91dada8fc3ee3d098f971bc319d477833
Reviewed-on: https://webrtc-review.googlesource.com/c/115653
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26226}
diff --git a/api/DEPS b/api/DEPS
index 82885d4..37d0e9b 100644
--- a/api/DEPS
+++ b/api/DEPS
@@ -57,13 +57,13 @@
     "+modules/audio_coding/codecs/opus/audio_encoder_opus.h",
   ],
 
-  "asyncresolverfactory\.h": [
-    "+rtc_base/asyncresolverinterface.h",
+  "async_resolver_factory\.h": [
+    "+rtc_base/async_resolver_interface.h",
   ],
 
   "candidate\.h": [
     "+rtc_base/network_constants.h",
-    "+rtc_base/socketaddress.h",
+    "+rtc_base/socket_address.h",
   ],
 
   "create_peerconnection_factory\.h": [
@@ -71,17 +71,17 @@
     "+rtc_base/scoped_ref_ptr.h",
   ],
 
-  "datachannelinterface\.h": [
-    "+rtc_base/copyonwritebuffer.h",
-    "+rtc_base/refcount.h",
+  "data_channel_interface\.h": [
+    "+rtc_base/copy_on_write_buffer.h",
+    "+rtc_base/ref_count.h",
   ],
 
-  "dtlstransportinterface\.h": [
-    "+rtc_base/refcount.h",
+  "dtls_transport_interface\.h": [
+    "+rtc_base/ref_count.h",
   ],
 
-  "dtmfsenderinterface\.h": [
-    "+rtc_base/refcount.h",
+  "dtmf_sender_interface\.h": [
+    "+rtc_base/ref_count.h",
   ],
 
   "fec_controller\.h": [
@@ -89,118 +89,118 @@
   ],
 
   "jsep\.h": [
-    "+rtc_base/refcount.h",
+    "+rtc_base/ref_count.h",
   ],
 
-  "jsepicecandidate\.h": [
-    "+rtc_base/constructormagic.h",
+  "jsep_ice_candidate\.h": [
+    "+rtc_base/constructor_magic.h",
   ],
 
-  "jsepsessiondescription\.h": [
-    "+rtc_base/constructormagic.h",
+  "jsep_session_description\.h": [
+    "+rtc_base/constructor_magic.h",
   ],
 
-  "mediastreaminterface\.h": [
+  "media_stream_interface\.h": [
     "+modules/audio_processing/include/audio_processing_statistics.h",
-    "+rtc_base/refcount.h",
+    "+rtc_base/ref_count.h",
     "+rtc_base/scoped_ref_ptr.h",
   ],
 
   "media_transport_interface\.h": [
-    "+rtc_base/copyonwritebuffer.h",  # As used by datachannelinterface.h
-    "+rtc_base/networkroute.h",
+    "+rtc_base/copy_on_write_buffer.h",  # As used by datachannelinterface.h
+    "+rtc_base/network_route.h",
     "+rtc_base/deprecation.h",
   ],
 
-  "peerconnectionfactoryproxy\.h": [
+  "peer_connection_factory_proxy\.h": [
     "+rtc_base/bind.h",
   ],
 
-  "peerconnectioninterface\.h": [
+  "peer_connection_interface\.h": [
     "+logging/rtc_event_log/rtc_event_log_factory_interface.h",
-    "+media/base/mediaconfig.h",
-    "+media/base/videocapturer.h",
-    "+media/base/mediaengine.h",
-    "+p2p/base/portallocator.h",
-    "+rtc_base/bitrateallocationstrategy.h",
+    "+media/base/media_config.h",
+    "+media/base/video_capturer.h",
+    "+media/base/media_engine.h",
+    "+p2p/base/port_allocator.h",
+    "+rtc_base/bitrate_allocation_strategy.h",
     "+rtc_base/network.h",
     "+rtc_base/platform_file.h",
-    "+rtc_base/rtccertificate.h",
-    "+rtc_base/rtccertificategenerator.h",
-    "+rtc_base/socketaddress.h",
-    "+rtc_base/sslcertificate.h",
-    "+rtc_base/sslstreamadapter.h",
+    "+rtc_base/rtc_certificate.h",
+    "+rtc_base/rtc_certificate_generator.h",
+    "+rtc_base/socket_address.h",
+    "+rtc_base/ssl_certificate.h",
+    "+rtc_base/ssl_stream_adapter.h",
   ],
 
   "proxy\.h": [
     "+rtc_base/event.h",
-    "+rtc_base/messagehandler.h",  # Inherits from it.
-    "+rtc_base/messagequeue.h",    # Inherits from MessageData.
-    "+rtc_base/refcountedobject.h",
+    "+rtc_base/message_handler.h",  # Inherits from it.
+    "+rtc_base/message_queue.h",    # Inherits from MessageData.
+    "+rtc_base/ref_counted_object.h",
     "+rtc_base/scoped_ref_ptr.h",
     "+rtc_base/thread.h",
   ],
 
-  "refcountedbase\.h": [
-    "+rtc_base/constructormagic.h",
-    "+rtc_base/refcount.h",
-    "+rtc_base/refcounter.h",
+  "ref_counted_base\.h": [
+    "+rtc_base/constructor_magic.h",
+    "+rtc_base/ref_count.h",
+    "+rtc_base/ref_counter.h",
   ],
 
-  "rtcerror\.h": [
+  "rtc_error\.h": [
     "+rtc_base/logging.h",
   ],
 
-  "rtpreceiverinterface\.h": [
-    "+rtc_base/refcount.h",
+  "rtp_receiver_interface\.h": [
+    "+rtc_base/ref_count.h",
     "+rtc_base/scoped_ref_ptr.h",
   ],
 
-  "rtpsenderinterface\.h": [
-    "+rtc_base/refcount.h",
+  "rtp_sender_interface\.h": [
+    "+rtc_base/ref_count.h",
     "+rtc_base/scoped_ref_ptr.h",
   ],
 
-  "rtptransceiverinterface\.h": [
-    "+rtc_base/refcount.h",
+  "rtp_transceiver_interface\.h": [
+    "+rtc_base/ref_count.h",
     "+rtc_base/scoped_ref_ptr.h",
   ],
 
-  "setremotedescriptionobserverinterface\.h": [
-    "+rtc_base/refcount.h",
+  "set_remote_description_observer_interface\.h": [
+    "+rtc_base/ref_count.h",
   ],
 
-  "statstypes\.h": [
-    "+rtc_base/constructormagic.h",
-    "+rtc_base/refcount.h",
+  "stats_types\.h": [
+    "+rtc_base/constructor_magic.h",
+    "+rtc_base/ref_count.h",
     "+rtc_base/scoped_ref_ptr.h",
-    "+rtc_base/stringencode.h",
+    "+rtc_base/string_encode.h",
     "+rtc_base/thread_checker.h",
   ],
 
-  "umametrics\.h": [
-    "+rtc_base/refcount.h",
+  "uma_metrics\.h": [
+    "+rtc_base/ref_count.h",
   ],
 
   "audio_frame\.h": [
-    "+rtc_base/constructormagic.h",
+    "+rtc_base/constructor_magic.h",
   ],
 
   "audio_mixer\.h": [
-    "+rtc_base/refcount.h",
+    "+rtc_base/ref_count.h",
   ],
 
   "audio_decoder\.h": [
     "+rtc_base/buffer.h",
-    "+rtc_base/constructormagic.h",
+    "+rtc_base/constructor_magic.h",
   ],
 
   "audio_decoder_factory\.h": [
-    "+rtc_base/refcount.h",
+    "+rtc_base/ref_count.h",
   ],
 
   "audio_decoder_factory_template\.h": [
-    "+rtc_base/refcountedobject.h",
+    "+rtc_base/ref_counted_object.h",
     "+rtc_base/scoped_ref_ptr.h",
   ],
 
@@ -210,11 +210,11 @@
   ],
 
   "audio_encoder_factory\.h": [
-    "+rtc_base/refcount.h",
+    "+rtc_base/ref_count.h",
   ],
 
   "audio_encoder_factory_template\.h": [
-    "+rtc_base/refcountedobject.h",
+    "+rtc_base/ref_counted_object.h",
     "+rtc_base/scoped_ref_ptr.h",
   ],
 
@@ -226,22 +226,22 @@
     "+rtc_base/scoped_ref_ptr.h",
   ],
 
-  "framedecryptorinterface\.h": [
-    "+rtc_base/refcount.h",
+  "frame_decryptor_interface\.h": [
+    "+rtc_base/ref_count.h",
   ],
 
-  "frameencryptorinterface\.h": [
-    "+rtc_base/refcount.h",
+  "frame_encryptor_interface\.h": [
+    "+rtc_base/ref_count.h",
   ],
 
-  "rtcstatscollectorcallback\.h": [
-    "+rtc_base/refcount.h",
+  "rtc_stats_collector_callback\.h": [
+    "+rtc_base/ref_count.h",
     "+rtc_base/scoped_ref_ptr.h",
   ],
 
-  "rtcstatsreport\.h": [
-    "+rtc_base/refcount.h",
-    "+rtc_base/refcountedobject.h",
+  "rtc_stats_report\.h": [
+    "+rtc_base/ref_count.h",
+    "+rtc_base/ref_counted_object.h",
     "+rtc_base/scoped_ref_ptr.h",
   ],
 
@@ -250,11 +250,11 @@
   ],
 
   "fake_frame_decryptor\.h": [
-    "+rtc_base/refcountedobject.h",
+    "+rtc_base/ref_counted_object.h",
   ],
 
   "fake_frame_encryptor\.h": [
-    "+rtc_base/refcountedobject.h",
+    "+rtc_base/ref_counted_object.h",
   ],
 
   "mock.*\.h": [
@@ -262,7 +262,7 @@
   ],
 
   "simulated_network\.h": [
-    "+rtc_base/criticalsection.h",
+    "+rtc_base/critical_section.h",
     "+rtc_base/random.h",
     "+rtc_base/thread_annotations.h",
   ],
@@ -280,7 +280,7 @@
   ],
 
   "video_encoder_config\.h": [
-    "+rtc_base/refcount.h",
+    "+rtc_base/ref_count.h",
     "+rtc_base/scoped_ref_ptr.h",
   ],