Update 'mb' setting for Linux ARM bots

tools/mb/mb_config.pyl

Index: tools/mb/mb_config.pyl
diff --git a/tools/mb/mb_config.pyl b/tools/mb/mb_config.pyl
index fa9dd827da2b40de86d1188d3bf2223efcd43a93..934ac2bf53f6f7519e608cc808953cfb6eba93a5 100644
--- a/tools/mb/mb_config.pyl
+++ b/tools/mb/mb_config.pyl
@@ -52,14 +52,10 @@
     'gyp_official_goma_minimal_symbols_android_arm64': ['gyp', 'official', 'goma', 'minimal_symbols', 'android', 'arm64'],
     'gyp_official_goma_minimal_symbols_x64': ['gyp', 'official', 'goma', 'minimal_symbols', 'x64'],
     'gyp_official_goma_minimal_symbols_x86': ['gyp', 'official', 'goma', 'minimal_symbols', 'x86'],
-    'gyp_release_bot_arm': ['gyp', 'release_bot', 'arm', 'crosscompile'],
     'gyp_release_trybot': ['gyp', 'release_trybot'],
     'gyp_release_trybot_x64': ['gyp', 'release_trybot', 'x64'],
     'libfuzzer_upload_bot': ['gn', 'release', 'libfuzzer', 'asan', 'proprietary_codecs'],
 
-    # This is just for completeness; any bot that uses this config should never actually run MB.
-    'none': ['none'],
-
     'noswarming_gyp_release_bot': ['noswarming', 'gyp', 'release_bot'],
     'noswarming_gyp_release_bot_linux_dump_symbols': ['noswarming', 'gyp', 'release_bot', 'linux_dump_symbols'],
     'noswarming_gyp_release_bot_mac_strip': ['noswarming', 'gyp', 'release_bot', 'mac_strip'],
@@ -78,8 +74,8 @@
     'swarming_gyp_debug_bot_no_symbols_x86': ['swarming', 'gyp', 'debug_bot', 'no_symbols', 'x86'],
     'swarming_gyp_debug_trybot_x86': ['swarming', 'gyp', 'debug_trybot', 'x86'],
     'swarming_gyp_release_bot': ['swarming', 'gyp', 'release_bot'],
+    'swarming_gyp_release_bot_arm': ['swarming', 'gyp', 'release_bot', 'arm', 'crosscompile'],
     'swarming_gyp_release_trybot_arm': ['swarming', 'gyp', 'release_trybot', 'arm', 'crosscompile'],
-    'swarming_gyp_release_trybot_arm_float': ['swarming', 'gyp', 'release_trybot', 'arm_float', 'crosscompile'],
     'swarming_tsan_gyp_release_trybot': ['swarming', 'disable_nacl', 'tsan', 'gyp', 'release_trybot'],
 
     # clang/win doesn't work with goma yet, so this can't use debug_bot:
@@ -127,11 +123,6 @@
       'gyp_defines': 'target_arch=arm64',
     },
 
-    'arm_float': {
-      'gn_args': 'error',
-      'gyp_defines': 'target_arch=arm arm_float_abi=hard',
-    },
-
     'arm64': {
       'gn_args': 'target_cpu="arm64"',
       'gyp_defines': 'target_arch=arm64',
@@ -273,15 +264,6 @@
       'gyp_defines': 'fastbuild=2',
     },
 
-    # This config is used by bots that aren't building Chromium and should
-    # never be running MB. It is used for tracking purposes. These values
-    # were picked such that if someone did try to run MB, both GN and GYP
-    # should error out.
-    'none': {
-      'gn_args': 'error',
-      'gyp_defines': 'target_arch=unknown',
-    },

[Dirk Pranke, 2015/11/21 00:38:05]

actually, I'd like to leave this block in. Did the presubmit tests make you
remove it?

If so, I suggest we update a different bot like, say, "Linux Tests" on
chromium.linux
to use "none" instead of "swarming_gn_release_bot". 

[Sam Clegg, 2015/11/21 00:43:46]

Yes, presubmit told me to do it.

Done.

-
     'noswarming': {
       'gn_args': '',
       'gyp_defines': 'test_isolation_mode=noop',
@@ -445,7 +427,7 @@
       'Libfuzzer Upload Linux': 'libfuzzer_upload_bot',
       'Site Isolation Linux': 'gn_release_trybot',
       'Site Isolation Win': 'gyp_release_trybot_x64',
-      'Linux ARM': 'gyp_release_bot_arm',
+      'Linux ARM': 'swarming_gyp_release_bot_arm',
     },
     'chromium.webrtc.fyi': {
       'Android GN': 'android_gn_release_bot',
@@ -507,8 +489,6 @@
       'linux_chromium_tsan_rel_ng': 'swarming_tsan_gyp_release_trybot',
       'linux_chromium_practice_rel_ng': 'gyp_release_trybot',
       'linux_arm_compile': 'swarming_gyp_release_trybot_arm',
-      'linux_arm': 'swarming_gyp_release_trybot_arm_float',
-      'linux_arm_tester': 'none',
       'linux_chromium_compile_dbg_32_ng': 'swarming_gyp_debug_trybot_x86',
       'linux_chromium_dbg_32_ng': 'swarming_gyp_debug_trybot_x86',
       'linux_chromium_archive_rel_ng': 'noswarming_gyp_release_bot_linux_dump_symbols',