PRESUBMIT: rename trybots from gn to gyp.

PRESUBMIT.py

Index: PRESUBMIT.py
diff --git a/PRESUBMIT.py b/PRESUBMIT.py
index 58242bd984d517ec08e32924e5598176253c429e..e940a1ecfeb4ef0c21ec5e447863b592ab516132 100755
--- a/PRESUBMIT.py
+++ b/PRESUBMIT.py
@@ -26,15 +26,15 @@ def GetPreferredTryMasters(project, change):
     'win',
     'win_rel',
     'win_x64_rel',
-    'win_x64_gn',
-    'win_x64_gn_rel',
+    'win_x64_gyp',
+    'win_x64_gyp_rel',
     'win_clang',
     'win_clang_rel',
     'win_x64_clang_rel',
     'mac',
     'mac_rel',
-    'mac_gn',
-    'mac_gn_rel',
+    'mac_gyp',
+    'mac_gyp_rel',
     'mac_asan',
     'ios',
     'ios_rel',
@@ -42,8 +42,8 @@ def GetPreferredTryMasters(project, change):
     'ios_arm64_rel',
     'linux',
     'linux_rel',
-    'linux_gn',
-    'linux_gn_rel',
+    'linux_gyp',
+    'linux_gyp_rel',
     'linux_memcheck',
     'linux_tsan2',
     'linux_asan',
@@ -57,8 +57,8 @@ def GetPreferredTryMasters(project, change):
     'android_mips',
     'android_x64',
     'android_x86',
-    'android_gn',
-    'android_gn_rel',
+    'android_gyp',
+    'android_gyp_rel',
   ]
   if not files or all(re.search(r'[\\/]OWNERS$', f) for f in files):
     return {}