Decompose //extensions/browser/BUILD.gn

extensions/browser/updater/extension_downloader.cc

Index: extensions/browser/updater/extension_downloader.cc
diff --git a/extensions/browser/updater/extension_downloader.cc b/extensions/browser/updater/extension_downloader.cc
index 85e192177e06956ac0921f331e42ea8fd65cea66..e24267b40dad5aee06e24a7812cddcca9d0853b0 100644
--- a/extensions/browser/updater/extension_downloader.cc
+++ b/extensions/browser/updater/extension_downloader.cc
@@ -126,7 +126,7 @@ bool IncrementAuthUserIndex(GURL* url) {
   int user_index = 0;
   std::string old_query = url->query();
   std::vector<std::string> new_query_parts;
-  url::Component query(0, old_query.length());
+  url::Component query(0, static_cast<int>(old_query.length()));
   url::Component key, value;
   while (url::ExtractQueryKeyValue(old_query.c_str(), &query, &key, &value)) {
     std::string key_string = old_query.substr(key.begin, key.len);
@@ -143,7 +143,7 @@ bool IncrementAuthUserIndex(GURL* url) {
   new_query_parts.push_back(
       base::StringPrintf("%s=%d", kAuthUserQueryKey, user_index + 1));
   std::string new_query_string = base::JoinString(new_query_parts, "&");
-  url::Component new_query(0, new_query_string.size());
+  url::Component new_query(0, static_cast<int>(new_query_string.size()));
   url::Replacements<char> replacements;
   replacements.SetQuery(new_query_string.c_str(), new_query);
   *url = url->ReplaceComponents(replacements);
@@ -443,7 +443,8 @@ void ExtensionDownloader::StartUpdateCheck(
   } else {
     UMA_HISTOGRAM_COUNTS(
         "Extensions.UpdateCheckUrlLength",
-        fetch_data->full_url().possibly_invalid_spec().length());
+        static_cast<int>(
+            fetch_data->full_url().possibly_invalid_spec().length()));
 
     manifests_queue_.ScheduleRequest(std::move(fetch_data));
   }
@@ -578,8 +579,8 @@ void ExtensionDownloader::HandleManifestResults(
       if (!crx_url.SchemeIsCryptographic()) {
         url::Replacements<char> replacements;
         std::string scheme("https");
-        replacements.SetScheme(scheme.c_str(),
-                               url::Component(0, scheme.size()));
+        replacements.SetScheme(
+            scheme.c_str(), url::Component(0, static_cast<int>(scheme.size())));
         crx_url = crx_url.ReplaceComponents(replacements);
       }
     }
@@ -664,7 +665,7 @@ void ExtensionDownloader::DetermineUpdates(
       continue;
     }
     VLOG(2) << "will try to update " << id;
-    result->push_back(i);
+    result->push_back(static_cast<int>(i));
   }
 }