[microdump] Add build fingerprint and product info metadata.

This is to add build fingerprint and product name/version to
microdumps. Conversely to what happens in the case of minidumps
with MIME fields, due to the nature of minidumps, extra metadata
cannot be reliably injected after the dump is completed.
This CL adds the plumbing to inject two optional fields plus the
corresponding tests.

BUG=chromium:410294
R=thestig@chromium.org

Review URL: https://codereview.chromium.org/1125153008

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1456 4c0a9323-5329-0410-9bdc-e9ce6186880e

src/client/linux/handler/exception_handler.cc

@@ -570,10 +570,13 @@ void ExceptionHandler::WaitForContinueSignal() {
 bool ExceptionHandler::DoDump(pid_t crashing_process, const void* context,
                               size_t context_size) {
   if (minidump_descriptor_.IsMicrodumpOnConsole()) {
-    return google_breakpad::WriteMicrodump(crashing_process,
-                                           context,
-                                           context_size,
-                                           mapping_list_);
+    return google_breakpad::WriteMicrodump(
+        crashing_process,
+        context,
+        context_size,
+        mapping_list_,
+        minidump_descriptor_.microdump_build_fingerprint(),
+        minidump_descriptor_.microdump_product_info());
   }
   if (minidump_descriptor_.IsFD()) {
     return google_breakpad::WriteMinidump(minidump_descriptor_.fd(),