Add info on extensions to detect malicious extensions

chrome/browser/feedback/system_logs/log_sources/chrome_internal_log_source.cc

Index: chrome/browser/feedback/system_logs/log_sources/chrome_internal_log_source.cc
diff --git a/chrome/browser/feedback/system_logs/log_sources/chrome_internal_log_source.cc b/chrome/browser/feedback/system_logs/log_sources/chrome_internal_log_source.cc
index 0f4eb5dd3e4ae07cc2ad402f1e939c890b9acb85..68e086d40919d1fad966f59750d2156233ab4dd3 100644
--- a/chrome/browser/feedback/system_logs/log_sources/chrome_internal_log_source.cc
+++ b/chrome/browser/feedback/system_logs/log_sources/chrome_internal_log_source.cc
@@ -5,6 +5,7 @@
 #include "chrome/browser/feedback/system_logs/log_sources/chrome_internal_log_source.h"
 
 #include "base/json/json_string_value_serializer.h"
+#include "base/strings/string_util.h"
 #include "base/sys_info.h"
 #include "base/task_scheduler/post_task.h"
 #include "build/build_config.h"
@@ -202,14 +203,18 @@ void ChromeInternalLogSource::PopulateExtensionInfoLogs(
   std::string extensions_list;
   for (const scoped_refptr<const extensions::Extension>& extension :
        extension_registry->enabled_extensions()) {
-    if (extensions_list.empty()) {
-      extensions_list = extension->name();
-    } else {
-      extensions_list += ",\n" + extension->name();
-    }
+    // Format the list as:
+    // "extension_id" : "extension_name" : "extension_version".
+
+    // Work around the anonymizer tool recognizing some versions as IPv4s.
+    // Replaces dots "." by underscores "_".
+    // We shouldn't change the anonymizer tool as it is working as intended; it
+    // must err on the side of safety.
+    std::string version;
+    base::ReplaceChars(extension->VersionString(), ".", "_", &version);
+    extensions_list += extension->id() + " : " + extension->name() +
+                       " : version " + version + "\n";
   }
-  if (!extensions_list.empty())
-    extensions_list += "\n";
 
   if (!extensions_list.empty())
     (*response)[kExtensionsListKey] = extensions_list;