Adding chrome flag to disable implicit capture

chrome/browser/about_flags.cc

Index: chrome/browser/about_flags.cc
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index 38759fd2dfbc0b79dd06e3a551a5054537cfaa99..689612691ecb22b2aa829ed7c69baa96b645586c 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -2076,6 +2076,10 @@ const FeatureEntry kFeatureEntries[] = {
     {"enable-feature-policy", IDS_FLAGS_FEATURE_POLICY_NAME,
      IDS_FLAGS_FEATURE_POLICY_DESCRIPTION, kOsAll,
      FEATURE_VALUE_TYPE(features::kFeaturePolicy)},
+    {"enable-pointer-event-v1-spec-capturing-behavior",
+     IDS_FLAGS_EXPERIMENTAL_POINTER_EVENT_V1_SPEC_CAPTURING_NAME,
+     IDS_FLAGS_EXPERIMENTAL_POINTER_EVENT_V1_SPEC_CAPTURING_DESCRIPTION, kOsAll,
+     FEATURE_VALUE_TYPE(features::kPointerEventV1SpecCapturing)},
     // NOTE: Adding new command-line switches requires adding corresponding
     // entries to enum "LoginCustomFlags" in histograms.xml. See note in
     // histograms.xml and don't forget to run AboutFlagsHistogramTest unit test.