Fix assert_static_initializers.py crash upon failure

Not a future-proof fix, but at least unbreaks it for now by adding
libcrashpad_handler_trampoline.so to the ignored list.

Crash looks like:
Dumping static initializers via dump-static-initializers.py:
Traceback (most recent call last):
  File "../../build/android/gyp/assert_static_initializers.py", line 174, in <module>
    main()
  File "../../build/android/gyp/assert_static_initializers.py", line 159, in main
    ignored_libs, no_initializers_libs)
  File "../../build/android/gyp/assert_static_initializers.py", line 125, in _AnalyzeStaticInitializers
    _PrintDumpSIsCount(f.filename, temp.name, out_dir, tool_prefix)
  File "../../build/android/gyp/assert_static_initializers.py", line 55, in _PrintDumpSIsCount
    so_with_symbols_path)
Exception: ('Unstripped .so not found. Looked here: %s', './lib.unstripped/libcrashpad_handler_trampoline.so')

Bug: 939207
Change-Id: I3cf6b9ba52d80a789ec5bcd3b8e1943e0a578a3a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2098773
Commit-Queue: Andrew Grieve <agrieve@chromium.org>
Commit-Queue: Peter Wen <wnwen@chromium.org>
Auto-Submit: Andrew Grieve <agrieve@chromium.org>
Reviewed-by: Peter Wen <wnwen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#749329}

build/android/gyp/assert_static_initializers.py

@@ -138,7 +138,7 @@ def main():
   args = parser.parse_args()
 
   # TODO(crbug.com/838414): add support for files included via loadable_modules.
-  ignored_libs = ['libarcore_sdk_c.so']
+  ignored_libs = {'libarcore_sdk_c.so', 'libcrashpad_handler_trampoline.so'}
   # The chromium linker doesn't have static initializers, which makes the
   # regular check throw. It should not have any.
   no_initializers_libs = ['libchromium_android_linker.so']

chrome/android/static_initializers.gni

@@ -13,6 +13,6 @@ if (current_toolchain == default_toolchain &&
     (!is_debug && !using_sanitizer && proprietary_codecs)) {
   # Define expectations only for target_cpu covered by trybots.
   if (target_cpu == "arm" || target_cpu == "arm64") {
-    expected_static_initializer_count = 4
+    expected_static_initializer_count = 2
   }
 }