Added GYP defines to dump linux symbols for gpu perf bots and trybots.

scripts/slave/recipes/chromium_trybot.expected/analyze_finds_invalid_target.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "[BUILD]/scripts/slave/bot_update.py",
       "--master",
       "tryserver.chromium.linux",
       "--builder",
       "linux_chromium_rel_ng",
@@ skipping 69 matching lines @@
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
       "[DEPOT_TOOLS]/gclient.py",
       "runhooks"
     ],
     "env": {
-      "GYP_DEFINES": "archive_gpu_tests=1 component=static_library dcheck_always_on=1 fastbuild=1 gomadir='[BUILD]/goma' target_arch=x64 test_isolation_mode=prepare use_goma=1"
+      "GYP_DEFINES": "archive_gpu_tests=1 component=static_library dcheck_always_on=1 fastbuild=1 gomadir='[BUILD]/goma' linux_dump_symbols=1 target_arch=x64 test_isolation_mode=prepare use_goma=1"
     },
     "name": "gclient runhooks (with patch)"
   },
   {
     "cmd": [
       "python",
       "-u",
       "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n",
       "[SLAVE_BUILD]/src/testing/buildbot/chromium.linux.json",
       "/path/to/tmp/json"
@@ skipping 83 matching lines @@
   {
     "cmd": [
       "python",
       "-u",
       "[SLAVE_BUILD]/src/build/gyp_chromium",
       "--analyzer",
       "{\"files\": [\"foo.cc\"], \"targets\": [\"angle_unittests_run\", \"base_unittests\", \"chrome\", \"content_gl_tests_run\", \"gl_tests_run\", \"tab_capture_end2end_tests_run\", \"telemetry_gpu_test_run\"]}",
       "/path/to/tmp/json"
     ],
     "env": {
-      "GYP_DEFINES": "archive_gpu_tests=1 component=static_library dcheck_always_on=1 fastbuild=1 gomadir='[BUILD]/goma' target_arch=x64 test_isolation_mode=prepare use_goma=1"
+      "GYP_DEFINES": "archive_gpu_tests=1 component=static_library dcheck_always_on=1 fastbuild=1 gomadir='[BUILD]/goma' linux_dump_symbols=1 target_arch=x64 test_isolation_mode=prepare use_goma=1"
     },
     "name": "analyze",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
       "@@@STEP_LOG_LINE@json.output@  \"invalid_targets\": [@@@",
       "@@@STEP_LOG_LINE@json.output@    \"invalid target\", @@@",
       "@@@STEP_LOG_LINE@json.output@    \"another one\"@@@",
       "@@@STEP_LOG_LINE@json.output@  ]@@@",
       "@@@STEP_LOG_LINE@json.output@}@@@",
       "@@@STEP_LOG_END@json.output@@@",
       "@@@SET_BUILD_PROPERTY@failure_hash@\"3908b365fae78e6b96f5e3b38db5b33131cde606\"@@@"
     ]
   },
   {
     "name": "$final_result",
     "reason": "Error, following targets were not found: invalid target, another one",
     "status_code": 1
   }
 ]