Use the correct product/version for postmortem reports

components/browser_watcher/postmortem_minidump_writer.h

Index: components/browser_watcher/postmortem_minidump_writer.h
diff --git a/components/browser_watcher/postmortem_minidump_writer.h b/components/browser_watcher/postmortem_minidump_writer.h
index 74297de45ebca86af8f5e30e59992b183b503ee6..17a345c35840c618ede5ce52853aeec5e704c125 100644
--- a/components/browser_watcher/postmortem_minidump_writer.h
+++ b/components/browser_watcher/postmortem_minidump_writer.h
@@ -21,6 +21,8 @@ struct MinidumpInfo {
   crashpad::UUID report_id;    // The report's identifier.
   std::string product_name;    // The product name to be used by the reporter.
   std::string version_number;  // The product's version number.
+  std::string channel_name;    // The name of the channel.

[rkaplow, 2016/09/30 14:41:54]

Can we point to any authoritative source on what these string/identifiers can
be? For ex. I don't know just looking at this if I should expect something more
like 'W' or 'Windows', or what

[manzagop (departed), 2016/09/30 18:54:20]

I was more specific in the comment, though more on the provenance than the
content.

+  std::string platform;        // The platform identifier.
 };
 
 // Write to |minidump_file| a minimal minidump that wraps |report|. Returns