Refine PNaCl pexe fetch UMA errors to know if the user aborted, etc.

ppapi/native_client/src/trusted/plugin/pnacl_coordinator.cc

Index: ppapi/native_client/src/trusted/plugin/pnacl_coordinator.cc
diff --git a/ppapi/native_client/src/trusted/plugin/pnacl_coordinator.cc b/ppapi/native_client/src/trusted/plugin/pnacl_coordinator.cc
index a9987fc61641fda97ab3696cef6e94b5150738c7..91586d684cbac990b7249918cc1c07db30391948 100644
--- a/ppapi/native_client/src/trusted/plugin/pnacl_coordinator.cc
+++ b/ppapi/native_client/src/trusted/plugin/pnacl_coordinator.cc
@@ -703,9 +703,8 @@ void PnaclCoordinator::CachedFileDidOpen(int32_t pp_error) {
       callback_factory_.NewCallback(
           &PnaclCoordinator::BitcodeStreamDidFinish);
 
-  // TODO(dschuff): need to use url_util_->ResolveRelativeToURL?

[jvoung (off chromium), 2013/01/15 20:35:48]

It looks like the pexe URL is obtained from the manifest (like the nexe url),
which does the ResolveRelativeToURL for you.

   if (!streaming_downloader_->OpenStream(pexe_url_, cb, this)) {
-    ReportNonPpapiError(ERROR_PNACL_PEXE_FETCH,
+    ReportNonPpapiError(ERROR_PNACL_PEXE_FETCH_OTHER,
                         nacl::string("failed to open stream ") + pexe_url_);
   }
 }
@@ -717,15 +716,19 @@ void PnaclCoordinator::BitcodeStreamDidFinish(int32_t pp_error) {
     // Defer reporting the error and cleanup until after the translation
     // thread returns, because it may be accessing the coordinator's
     // objects or writing to the files.
-    // TODO(dschuff,jvoung): If this is a PP_ERROR_ABORTED, we probably
-    // want the UMA stat to show that the user aborted the action
-    // (vs a network error).
-    // We also want to track the total number of bytes of the pexe
-    // to know the typical application sizes.
     translate_finish_error_ = pp_error;
-    nacl::stringstream ss;
-    ss << "PnaclCoordinator: pexe load failed (pp_error=" << pp_error << ").";
-    error_info_.SetReport(ERROR_PNACL_PEXE_FETCH, ss.str());
+    if (pp_error == PP_ERROR_ABORTED) {
+      error_info_.SetReport(ERROR_PNACL_PEXE_FETCH_ABORTED,
+                            "PnaclCoordinator: pexe load failed.  Aborted.");
+    }
+    if (pp_error == PP_ERROR_NOACCESS) {
+      error_info_.SetReport(ERROR_PNACL_PEXE_FETCH_NOACCESS,
+                            "PnaclCoordinator: pexe load failed.  No access.");
+    } else {
+      nacl::stringstream ss;
+      ss << "PnaclCoordinator: pexe load failed (pp_error=" << pp_error << ").";
+      error_info_.SetReport(ERROR_PNACL_PEXE_FETCH_OTHER, ss.str());
+    }
     translate_thread_->AbortSubprocesses();
   }
 }