Media: Report HTMLMediaElement player errors to devtools console

third_party/WebKit/Source/core/html/HTMLMediaElement.cpp

 /*
  * Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 1299 matching lines @@
 
     // 6.18 - Set the element's delaying-the-load-event flag to false. This stops delaying the load event.
     setShouldDelayLoadEvent(false);
 
     updateDisplayState();
 
     if (layoutObject())
         layoutObject()->updateFromElement();
 }
 
+void HTMLMediaElement::reportPlayerErrorToDevToolsConsole()
+{
+    WTF_LOG(Media, "HTMLMediaElement::reportPlayerErrorToDevToolsConsole(%p)", this);
+
+    if (!m_webMediaPlayer)
+        return;
+
+    const WebString& message = m_webMediaPlayer->getErrorMessage();
+    if (message.isEmpty())
+        return;
+
+    document().addConsoleMessage(ConsoleMessage::create(JSMessageSource, ErrorMessageLevel, message));
+}
+
 void HTMLMediaElement::noneSupported()
 {
     WTF_LOG(Media, "HTMLMediaElement::noneSupported(%p)", this);
 
     stopPeriodicTimers();
     m_loadState = WaitingForSource;
     m_currentSourceNode = nullptr;
 
     // 4.8.13.5
     // The dedicated media source failure steps are the following steps:
 
     // 1 - Set the error attribute to a new MediaError object whose code attribute is set to
     // MEDIA_ERR_SRC_NOT_SUPPORTED.
     m_error = MediaError::create(MediaError::MEDIA_ERR_SRC_NOT_SUPPORTED);
+    reportPlayerErrorToDevToolsConsole();
 
     // 2 - Forget the media element's media-resource-specific text tracks.
     forgetResourceSpecificTracks();
 
     // 3 - Set the element's networkState attribute to the NETWORK_NO_SOURCE value.
     setNetworkState(NETWORK_NO_SOURCE);
 
     // 4 - Set the element's show poster flag to true.
     updateDisplayState();
 
@@ skipping 17 matching lines @@
     ASSERT(m_readyState >= HAVE_METADATA);
     WTF_LOG(Media, "HTMLMediaElement::mediaEngineError(%p, %d)", this, static_cast<int>(err->code()));
 
     // 1 - The user agent should cancel the fetching process.
     stopPeriodicTimers();
     m_loadState = WaitingForSource;
 
     // 2 - Set the error attribute to a new MediaError object whose code attribute is
     // set to MEDIA_ERR_NETWORK/MEDIA_ERR_DECODE.
     m_error = err;
+    reportPlayerErrorToDevToolsConsole();
 
     // 3 - Queue a task to fire a simple event named error at the media element.
     scheduleEvent(EventTypeNames::error);
 
     // 4 - Set the element's networkState attribute to the NETWORK_IDLE value.
     setNetworkState(NETWORK_IDLE);
 
     // 5 - Set the element's delaying-the-load-event flag to false. This stops delaying the load event.
     setShouldDelayLoadEvent(false);
 
@@ skipping 2503 matching lines @@
 }
 
 #if !ENABLE(OILPAN)
 WeakPtr<HTMLMediaElement> HTMLMediaElement::createWeakPtr()
 {
     return m_weakPtrFactory.createWeakPtr();
 }
 #endif
 
 } // namespace blink