Add UseCounter to measure edits to text fields by security state

third_party/WebKit/Source/core/frame/UseCounter.h

Index: third_party/WebKit/Source/core/frame/UseCounter.h
diff --git a/third_party/WebKit/Source/core/frame/UseCounter.h b/third_party/WebKit/Source/core/frame/UseCounter.h
index cff6edb56d6f47afe6717d60cab2215004587752..1159e7e8f0b93d16dc8ade7563e3b2162be7d9a8 100644
--- a/third_party/WebKit/Source/core/frame/UseCounter.h
+++ b/third_party/WebKit/Source/core/frame/UseCounter.h
@@ -1587,6 +1587,8 @@ class CORE_EXPORT UseCounter {
     kCrossOriginPropertyAccessFromOpener = 1978,
     kCredentialManagerCreate = 1979,
     kWebDatabaseCreateDropFTS3Table = 1980,
+    kFieldEditInSecureContext = 1981,
+    kFieldEditInNonSecureContext = 1982,
 
     // Add new features immediately above this line. Don't change assigned
     // numbers of any item, and don't reuse removed slots.