WebRTC: Rename trybots and add compile-only configs.

scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_linux_compile_dbg.json

Index: scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_linux_compile_dbg.json
diff --git a/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_linux_gn.json b/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_linux_compile_dbg.json
similarity index 88%
copy from scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_linux_gn.json
copy to scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_linux_compile_dbg.json
index 9f75e638b8ca3db7f2495cbecac73b08c35f5a06..d4677bcc5ca0815d625df075e4fd0221f3662361 100644
--- a/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_linux_gn.json
+++ b/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_linux_compile_dbg.json
@@ -7,7 +7,7 @@
       "--master",
       "tryserver.webrtc",
       "--builder",
-      "linux_gn",
+      "linux_compile_dbg",
       "--slave",
       "slavename",
       "--spec",
@@ -75,7 +75,6 @@
     ],
     "cwd": "[SLAVE_BUILD]",
     "env": {
-      "GYP_CHROMIUM_NO_ACTION": "1",
       "GYP_DEFINES": "component=shared_library dcheck_always_on=1 fastbuild=1 gomadir='[BUILD]/goma' target_arch=x64 use_goma=1"
     },
     "name": "gclient runhooks"
@@ -84,19 +83,6 @@
     "cmd": [
       "python",
       "-u",
-      "[DEPOT_TOOLS]/gn.py",
-      "--root=[SLAVE_BUILD]/src",
-      "gen",
-      "//out/Debug",
-      "--args=is_debug=true target_cpu=\"x64\" use_goma=true goma_dir=\"[BUILD]/goma\" build_with_chromium=false"
-    ],
-    "cwd": "[SLAVE_BUILD]",
-    "name": "gn"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
       "[BUILD]/scripts/slave/compile.py",
       "--target",
       "Debug",
@@ -111,7 +97,7 @@
       "--goma-fail-fast",
       "--goma-disable-local-fallback",
       "--",
-      "all"
+      "All"
     ],
     "cwd": "[SLAVE_BUILD]",
     "name": "compile"