Set correct error message when disconnecting messaging port.

Previously the same error message was used for all messaging-releated errors.
That's a problem for native messaging because there may be different reasons
for the error. Modified IPC messages to pass error message string instead of
a single boolean flag for errors.

BUG=142915

Review URL: https://codereview.chromium.org/12480008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@186861 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 4 insertions, 6 deletions

diff --git a/chrome/renderer/resources/extensions/miscellaneous_bindings.js b/chrome/renderer/resources/extensions/miscellaneous_bindings.js
index 147528c..fc8e2cc 100644
--- a/chrome/renderer/resources/extensions/miscellaneous_bindings.js
+++ b/chrome/renderer/resources/extensions/miscellaneous_bindings.js
@@ -225,16 +225,14 @@
 
   // Called by native code when a channel has been closed.
   chromeHidden.Port.dispatchOnDisconnect = function(
-      portId, connectionInvalid) {
+      portId, errorMessage) {
     var port = ports[portId];
     if (port) {
       // Update the renderer's port bookkeeping, without notifying the browser.
       CloseChannel(portId, false);
-      if (connectionInvalid) {
-        var errorMsg =
-            "Could not establish connection. Receiving end does not exist.";
-        lastError.set(errorMsg);
-        console.error("Port error: " + errorMsg);
+      if (errorMessage) {
+        lastError.set(errorMessage);
+        console.error("Port error: " + errorMessage);
       }
       try {
         port.onDisconnect.dispatch(port);