[Password Manager] Copiable username and origin. Linkable origin elided from the left.

components/password_manager/core/browser/affiliation_utils.cc

Index: components/password_manager/core/browser/affiliation_utils.cc
diff --git a/components/password_manager/core/browser/affiliation_utils.cc b/components/password_manager/core/browser/affiliation_utils.cc
index 8018ec4e879e367a83f5a946063072eaebc33565..87f99136fdef94a418bc9768c028f5e6df03eb8e 100644
--- a/components/password_manager/core/browser/affiliation_utils.cc
+++ b/components/password_manager/core/browser/affiliation_utils.cc
@@ -30,6 +30,9 @@ const char kAndroidAppScheme[] = "android";
 // The name of the field trial controlling affiliation-based matching.
 const char kFieldTrialName[] = "AffiliationBasedMatching";
 
+// The URL prefixes that are removed from shown origin.
+const std::string kRemovedPrefixes[] = {"m.", "mobile.", "www."};
+
 // Returns a StringPiece corresponding to |component| in |uri|, or the empty
 // string in case there is no such component.
 base::StringPiece ComponentString(const std::string& uri,
@@ -347,4 +350,19 @@ std::string GetHumanReadableOrigin(const autofill::PasswordForm& password_form,
       password_form.origin, languages));
 }
 
+std::string GetShownOrigin(const GURL& url, const std::string& languages) {
+  std::string original = base::UTF16ToUTF8(
+      url_formatter::FormatUrlForSecurityDisplayOmitScheme(url, languages));
+  std::string result = original;
+  for (std::string prefix : kRemovedPrefixes) {
+    if (base::StartsWith(result, prefix,
+                         base::CompareCase::INSENSITIVE_ASCII)) {
+      result = result.substr(prefix.length());
+      break;  // Remove only one prefix (e.g. www.mobile.de).
+    }
+  }
+
+  return result.find('.') != std::string::npos ? result : original;
+}
+
 }  // namespace password_manager