Add new WebRTC-chromium compile_dbg trybots to waterfalls.pyl.

In order to avoid regressions on the WebRTC component build in
Chromium, WebRTC will add 2 trybots to build Chromium in WebRTC's CQ
with is_debug=true and is_component_build=true.

Bug: webrtc:9419
Change-Id: Ib68d5c1a170069bd032b4e8141b24765afb7c2bf
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1862680Reviewed-by: Patrik Höglund <phoglund@chromium.org>
Reviewed-by: John Budorick <jbudorick@chromium.org>
Commit-Queue: Mirko Bonadei <mbonadei@chromium.org>
Cr-Commit-Position: refs/heads/master@{#712654}

testing/buildbot/tryserver.webrtc.json

@@ -23,6 +23,18 @@
       "remoting/webapp:webapp"
     ]
   },
+  "linux_chromium_compile_dbg": {
+    "additional_compile_targets": [
+      "blink_unittests",
+      "browser_tests",
+      "capture_unittests",
+      "content_browsertests",
+      "content_unittests",
+      "jingle_unittests",
+      "remoting_unittests",
+      "remoting/webapp:webapp"
+    ]
+  },
   "mac_chromium_compile": {
     "additional_compile_targets": [
       "blink_unittests",
@@ -46,5 +58,17 @@
       "remoting_unittests",
       "remoting/webapp:webapp"
     ]
+  },
+  "win_chromium_compile_dbg": {
+    "additional_compile_targets": [
+      "blink_unittests",
+      "browser_tests",
+      "capture_unittests",
+      "content_browsertests",
+      "content_unittests",
+      "jingle_unittests",
+      "remoting_unittests",
+      "remoting/webapp:webapp"
+    ]
   }
 }

testing/buildbot/waterfalls.pyl

@@ -4481,6 +4481,18 @@
           'remoting/webapp:webapp',
         ],
       },
+      'linux_chromium_compile_dbg': {
+        'additional_compile_targets': [
+          'blink_unittests',
+          'browser_tests',
+          'capture_unittests',
+          'content_browsertests',
+          'content_unittests',
+          'jingle_unittests',
+          'remoting_unittests',
+          'remoting/webapp:webapp',
+        ],
+      },
       'mac_chromium_compile': {
         'additional_compile_targets': [
           'blink_unittests',
@@ -4505,6 +4517,18 @@
           'remoting/webapp:webapp',
         ],
       },
+      'win_chromium_compile_dbg': {
+        'additional_compile_targets': [
+          'blink_unittests',
+          'browser_tests',
+          'capture_unittests',
+          'content_browsertests',
+          'content_unittests',
+          'jingle_unittests',
+          'remoting_unittests',
+          'remoting/webapp:webapp',
+        ],
+      },
     },
   },
 ]

tools/mb/mb_config.pyl

@@ -964,8 +964,10 @@
 
     'tryserver.webrtc': {
       'win_chromium_compile': 'gpu_tests_release_trybot_resource_whitelisting',
+      'win_chromium_compile_dbg': 'gpu_tests_debug_trybot_x86_compile_only',
       'mac_chromium_compile': 'gpu_tests_release_trybot',
       'linux_chromium_compile': 'release_trybot',
+      'linux_chromium_compile_dbg': 'debug_trybot',
       'android_chromium_compile': 'android_release_trybot',
     },
   },