webrtc: run tests in the checkout directory

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

Index: scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_win_asan.json
diff --git a/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_win_asan.json b/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_win_asan.json
index 703e1684bd06936f44eec2f7e4b532b8947874cb..fb233550fddf4cd7c95d088279397829e83519c5 100644
--- a/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_win_asan.json
+++ b/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_win_asan.json
@@ -247,7 +247,7 @@
       "[BUILDER_CACHE]\\win_asan\\src\\out\\Release\\audio_decoder_unittests",
       "--"
     ],
-    "cwd": "[BUILDER_CACHE]\\win_asan",
+    "cwd": "[BUILDER_CACHE]\\win_asan\\src",
     "name": "audio_decoder_unittests"
   },
   {
@@ -272,7 +272,7 @@
       "[BUILDER_CACHE]\\win_asan\\src\\out\\Release\\common_audio_unittests",
       "--"
     ],
-    "cwd": "[BUILDER_CACHE]\\win_asan",
+    "cwd": "[BUILDER_CACHE]\\win_asan\\src",
     "name": "common_audio_unittests"
   },
   {
@@ -297,7 +297,7 @@
       "[BUILDER_CACHE]\\win_asan\\src\\out\\Release\\common_video_unittests",
       "--"
     ],
-    "cwd": "[BUILDER_CACHE]\\win_asan",
+    "cwd": "[BUILDER_CACHE]\\win_asan\\src",
     "name": "common_video_unittests"
   },
   {
@@ -322,7 +322,7 @@
       "[BUILDER_CACHE]\\win_asan\\src\\out\\Release\\modules_tests",
       "--"
     ],
-    "cwd": "[BUILDER_CACHE]\\win_asan",
+    "cwd": "[BUILDER_CACHE]\\win_asan\\src",
     "name": "modules_tests"
   },
   {
@@ -347,7 +347,7 @@
       "[BUILDER_CACHE]\\win_asan\\src\\out\\Release\\modules_unittests",
       "--"
     ],
-    "cwd": "[BUILDER_CACHE]\\win_asan",
+    "cwd": "[BUILDER_CACHE]\\win_asan\\src",
     "name": "modules_unittests"
   },
   {
@@ -372,7 +372,7 @@
       "[BUILDER_CACHE]\\win_asan\\src\\out\\Release\\peerconnection_unittests",
       "--"
     ],
-    "cwd": "[BUILDER_CACHE]\\win_asan",
+    "cwd": "[BUILDER_CACHE]\\win_asan\\src",
     "name": "peerconnection_unittests"
   },
   {
@@ -397,7 +397,7 @@
       "[BUILDER_CACHE]\\win_asan\\src\\out\\Release\\rtc_media_unittests",
       "--"
     ],
-    "cwd": "[BUILDER_CACHE]\\win_asan",
+    "cwd": "[BUILDER_CACHE]\\win_asan\\src",
     "name": "rtc_media_unittests"
   },
   {
@@ -422,7 +422,7 @@
       "[BUILDER_CACHE]\\win_asan\\src\\out\\Release\\rtc_pc_unittests",
       "--"
     ],
-    "cwd": "[BUILDER_CACHE]\\win_asan",
+    "cwd": "[BUILDER_CACHE]\\win_asan\\src",
     "name": "rtc_pc_unittests"
   },
   {
@@ -447,7 +447,7 @@
       "[BUILDER_CACHE]\\win_asan\\src\\out\\Release\\rtc_unittests",
       "--"
     ],
-    "cwd": "[BUILDER_CACHE]\\win_asan",
+    "cwd": "[BUILDER_CACHE]\\win_asan\\src",
     "name": "rtc_unittests"
   },
   {
@@ -472,7 +472,7 @@
       "[BUILDER_CACHE]\\win_asan\\src\\out\\Release\\system_wrappers_unittests",
       "--"
     ],
-    "cwd": "[BUILDER_CACHE]\\win_asan",
+    "cwd": "[BUILDER_CACHE]\\win_asan\\src",
     "name": "system_wrappers_unittests"
   },
   {
@@ -497,7 +497,7 @@
       "[BUILDER_CACHE]\\win_asan\\src\\out\\Release\\test_support_unittests",
       "--"
     ],
-    "cwd": "[BUILDER_CACHE]\\win_asan",
+    "cwd": "[BUILDER_CACHE]\\win_asan\\src",
     "name": "test_support_unittests"
   },
   {
@@ -522,7 +522,7 @@
       "[BUILDER_CACHE]\\win_asan\\src\\out\\Release\\tools_unittests",
       "--"
     ],
-    "cwd": "[BUILDER_CACHE]\\win_asan",
+    "cwd": "[BUILDER_CACHE]\\win_asan\\src",
     "name": "tools_unittests"
   },
   {
@@ -547,7 +547,7 @@
       "[BUILDER_CACHE]\\win_asan\\src\\out\\Release\\video_engine_tests",
       "--"
     ],
-    "cwd": "[BUILDER_CACHE]\\win_asan",
+    "cwd": "[BUILDER_CACHE]\\win_asan\\src",
     "name": "video_engine_tests"
   },
   {
@@ -572,7 +572,7 @@
       "[BUILDER_CACHE]\\win_asan\\src\\out\\Release\\voice_engine_unittests",
       "--"
     ],
-    "cwd": "[BUILDER_CACHE]\\win_asan",
+    "cwd": "[BUILDER_CACHE]\\win_asan\\src",
     "name": "voice_engine_unittests"
   },
   {
@@ -597,7 +597,7 @@
       "[BUILDER_CACHE]\\win_asan\\src\\out\\Release\\xmllite_xmpp_unittests",
       "--"
     ],
-    "cwd": "[BUILDER_CACHE]\\win_asan",
+    "cwd": "[BUILDER_CACHE]\\win_asan\\src",
     "name": "xmllite_xmpp_unittests"
   },
   {
@@ -621,7 +621,7 @@
       "--revision=f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
       "webrtc_nonparallel_tests.exe"
     ],
-    "cwd": "[BUILDER_CACHE]\\win_asan",
+    "cwd": "[BUILDER_CACHE]\\win_asan\\src",
     "name": "webrtc_nonparallel_tests"
   },
   {