Add symbol_level=2 to CrOS thin-lto bots.

In crbug.com/1129937, we saw build-time regressions during chrome-uprevs
that were believed to only show up when symbol_level=2.

Now that crbug.com/1129937 is resolved, this adds full symbols to a
couple of chrome's Simple Chrome bots which may help catch any similar
regressions in the future.

Bug: 1129937
Change-Id: I0f37f642f7cb8a6a6a082a3b2cf83a2032620058
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2488701
Commit-Queue: Ben Pastene <bpastene@chromium.org>
Reviewed-by: Garrett Beaty <gbeaty@chromium.org>
Cr-Commit-Position: refs/heads/master@{#826821}

testing/buildbot/chrome.json

@@ -12,6 +12,9 @@
     ],
     "gtest_tests": [
       {
+        "args": [
+          "--strip-chrome"
+        ],
         "merge": {
           "args": [],
           "script": "//testing/merge_scripts/standard_gtest_merge.py"

testing/buildbot/test_suite_exceptions.pyl

@@ -670,6 +670,16 @@
       'mac-archive-rel',
     ],
   },
+  'chrome_all_tast_tests': {
+    'modifications': {
+      'chromeos-betty-pi-arc-cfi-thin-lto-chrome': {
+        'args': [
+          # This bot sets symbol_level=2, which doesn't fit inside a normal VM.
+          '--strip-chrome',
+        ],
+      },
+    },
+  },
   'chrome_java_test_pagecontroller_tests': {
     'modifications': {
       'android-pie-arm64-rel': {

tools/mb/mb_config.pyl

@@ -1591,7 +1591,7 @@
     ],
 
     'chromeos_arm-generic_cfi_thin_lto_official': [
-      'chromeos_device', 'arm-generic', 'cfi_full', 'thin_lto', 'official',
+      'chromeos_device', 'arm-generic', 'cfi_full', 'thin_lto', 'official', 'full_symbols',
     ],
 
     'chromeos_arm-generic_dcheck_always_on': [
@@ -1607,7 +1607,7 @@
     ],
 
     'chromeos_betty-pi-arc_cfi_thin_lto_official': [
-      'chromeos_device', 'betty-pi-arc', 'cfi_full', 'thin_lto', 'official',
+      'chromeos_device', 'betty-pi-arc', 'cfi_full', 'thin_lto', 'official', 'full_symbols',
     ],
 
     'chromeos_betty-arc-r_include_unwind_tables_official_use_fake_dbus_clients': [

tools/mb/mb_config_expectations/chrome.json

@@ -7,6 +7,7 @@
       "is_chromeos_device": true,
       "is_official_build": true,
       "ozone_platform_headless": true,
+      "symbol_level": 2,
       "use_cfi_cast": true,
       "use_goma": true,
       "use_thin_lto": true
@@ -20,6 +21,7 @@
       "is_chromeos_device": true,
       "is_official_build": true,
       "ozone_platform_headless": true,
+      "symbol_level": 2,
       "use_cfi_cast": true,
       "use_goma": true,
       "use_thin_lto": true

tools/mb/mb_config_expectations/tryserver.chrome.json

@@ -7,6 +7,7 @@
       "is_chromeos_device": true,
       "is_official_build": true,
       "ozone_platform_headless": true,
+      "symbol_level": 2,
       "use_cfi_cast": true,
       "use_goma": true,
       "use_thin_lto": true
@@ -32,6 +33,7 @@
       "is_chromeos_device": true,
       "is_official_build": true,
       "ozone_platform_headless": true,
+      "symbol_level": 2,
       "use_cfi_cast": true,
       "use_goma": true,
       "use_thin_lto": true