Revert of 🐎 Remove --shard-timeout from webrtc recipes now that they are in wrapper scripts

scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_android_n6.json

Index: scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_android_n6.json
diff --git a/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_android_n6.json b/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_android_n6.json
index cdd8244be4c78d39763fdec54547b50d647211ed..480bea87c3fee13eb601ddef04bd3d2e52745356 100644
--- a/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_android_n6.json
+++ b/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_android_n6.json
@@ -349,7 +349,9 @@
       "[SLAVE_BUILD]/src/out/Debug/bin/run_audio_decoder_unittests",
       "--blacklist-file",
       "[SLAVE_BUILD]/src/out/bad_devices.json",
-      "--verbose"
+      "--verbose",
+      "-t",
+      "900"
     ],
     "cwd": "[SLAVE_BUILD]",
     "env": {
@@ -364,7 +366,9 @@
       "[SLAVE_BUILD]/src/out/Debug/bin/run_common_audio_unittests",
       "--blacklist-file",
       "[SLAVE_BUILD]/src/out/bad_devices.json",
-      "--verbose"
+      "--verbose",
+      "-t",
+      "900"
     ],
     "cwd": "[SLAVE_BUILD]",
     "env": {
@@ -379,7 +383,9 @@
       "[SLAVE_BUILD]/src/out/Debug/bin/run_common_video_unittests",
       "--blacklist-file",
       "[SLAVE_BUILD]/src/out/bad_devices.json",
-      "--verbose"
+      "--verbose",
+      "-t",
+      "900"
     ],
     "cwd": "[SLAVE_BUILD]",
     "env": {
@@ -394,7 +400,9 @@
       "[SLAVE_BUILD]/src/out/Debug/bin/run_modules_tests",
       "--blacklist-file",
       "[SLAVE_BUILD]/src/out/bad_devices.json",
-      "--verbose"
+      "--verbose",
+      "-t",
+      "900"
     ],
     "cwd": "[SLAVE_BUILD]",
     "env": {
@@ -409,7 +417,9 @@
       "[SLAVE_BUILD]/src/out/Debug/bin/run_modules_unittests",
       "--blacklist-file",
       "[SLAVE_BUILD]/src/out/bad_devices.json",
-      "--verbose"
+      "--verbose",
+      "-t",
+      "900"
     ],
     "cwd": "[SLAVE_BUILD]",
     "env": {
@@ -424,7 +434,9 @@
       "[SLAVE_BUILD]/src/out/Debug/bin/run_peerconnection_unittests",
       "--blacklist-file",
       "[SLAVE_BUILD]/src/out/bad_devices.json",
-      "--verbose"
+      "--verbose",
+      "-t",
+      "900"
     ],
     "cwd": "[SLAVE_BUILD]",
     "env": {
@@ -439,7 +451,9 @@
       "[SLAVE_BUILD]/src/out/Debug/bin/run_system_wrappers_unittests",
       "--blacklist-file",
       "[SLAVE_BUILD]/src/out/bad_devices.json",
-      "--verbose"
+      "--verbose",
+      "-t",
+      "900"
     ],
     "cwd": "[SLAVE_BUILD]",
     "env": {
@@ -454,7 +468,9 @@
       "[SLAVE_BUILD]/src/out/Debug/bin/run_test_support_unittests",
       "--blacklist-file",
       "[SLAVE_BUILD]/src/out/bad_devices.json",
-      "--verbose"
+      "--verbose",
+      "-t",
+      "900"
     ],
     "cwd": "[SLAVE_BUILD]",
     "env": {
@@ -469,7 +485,9 @@
       "[SLAVE_BUILD]/src/out/Debug/bin/run_tools_unittests",
       "--blacklist-file",
       "[SLAVE_BUILD]/src/out/bad_devices.json",
-      "--verbose"
+      "--verbose",
+      "-t",
+      "900"
     ],
     "cwd": "[SLAVE_BUILD]",
     "env": {
@@ -484,7 +502,9 @@
       "[SLAVE_BUILD]/src/out/Debug/bin/run_video_engine_tests",
       "--blacklist-file",
       "[SLAVE_BUILD]/src/out/bad_devices.json",
-      "--verbose"
+      "--verbose",
+      "-t",
+      "900"
     ],
     "cwd": "[SLAVE_BUILD]",
     "env": {
@@ -499,7 +519,9 @@
       "[SLAVE_BUILD]/src/out/Debug/bin/run_voice_engine_unittests",
       "--blacklist-file",
       "[SLAVE_BUILD]/src/out/bad_devices.json",
-      "--verbose"
+      "--verbose",
+      "-t",
+      "900"
     ],
     "cwd": "[SLAVE_BUILD]",
     "env": {
@@ -514,7 +536,9 @@
       "[SLAVE_BUILD]/src/out/Debug/bin/run_webrtc_nonparallel_tests",
       "--blacklist-file",
       "[SLAVE_BUILD]/src/out/bad_devices.json",
-      "--verbose"
+      "--verbose",
+      "-t",
+      "900"
     ],
     "cwd": "[SLAVE_BUILD]",
     "env": {
@@ -529,7 +553,9 @@
       "[SLAVE_BUILD]/src/out/Debug/bin/run_webrtc_perf_tests",
       "--blacklist-file",
       "[SLAVE_BUILD]/src/out/bad_devices.json",
-      "--verbose"
+      "--verbose",
+      "-t",
+      "2700"
     ],
     "cwd": "[SLAVE_BUILD]",
     "env": {