Pass Manifest JSON paser error line and column number to console.

content/renderer/manifest/manifest_manager.cc

Index: content/renderer/manifest/manifest_manager.cc
diff --git a/content/renderer/manifest/manifest_manager.cc b/content/renderer/manifest/manifest_manager.cc
index b148601cbb3ad8818f6f68fc1b55ca6c873099ba..dcdf176047d52d535e41d8b9f23c12b85702ba96 100644
--- a/content/renderer/manifest/manifest_manager.cc
+++ b/content/renderer/manifest/manifest_manager.cc
@@ -160,12 +160,15 @@ void ManifestManager::OnManifestFetchComplete(
 
   fetcher_.reset();
 
-  for (const std::string& msg : parser.errors()) {
+  for (const scoped_ptr<ManifestParser::ErrorInfo>& error_info :
+       parser.errors()) {
     blink::WebConsoleMessage message;
     message.level = blink::WebConsoleMessage::LevelError;
-    message.text = blink::WebString::fromUTF8(msg);
+    message.text = blink::WebString::fromUTF8(error_info->error_msg);
     message.url =
         render_frame()->GetWebFrame()->document().manifestURL().string();
+    message.lineNumber = error_info->error_line;
+    message.columnNumber = error_info->error_column;
     render_frame()->GetWebFrame()->addMessageToConsole(message);
   }