Trace FrameLoader object snapshots

third_party/WebKit/Source/core/loader/FrameLoaderStateMachine.cpp

 /*
  * Copyright (C) 2010 Google 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
@@ skipping 11 matching lines @@
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "core/loader/FrameLoaderStateMachine.h"
 
 #include "wtf/Assertions.h"
+#include "wtf/text/WTFString.h"
 
 namespace blink {
 
 
 FrameLoaderStateMachine::FrameLoaderStateMachine()
     : m_state(CreatingInitialEmptyDocument)
 {
 }
 
 bool FrameLoaderStateMachine::committedFirstRealDocumentLoad() const
@@ skipping 15 matching lines @@
 {
     return m_state >= DisplayingInitialEmptyDocument && m_state < CommittedFirstRealLoad;
 }
 
 void FrameLoaderStateMachine::advanceTo(State state)
 {
     ASSERT(m_state < state);
     m_state = state;
 }
 
+String FrameLoaderStateMachine::toString() const
+{
+    switch (m_state) {
+    case CreatingInitialEmptyDocument:
+        return "CreatingInitialEmptyDocument";
+    case DisplayingInitialEmptyDocument:
+        return "DisplayingInitialEmptyDocument";
+    case CommittedFirstRealLoad:
+        return "CommittedFirstRealLoad";
+    case CommittedMultipleRealLoads:
+        return "CommittedMultipleRealLoads";
+    default:
+        ASSERT_NOT_REACHED();
+    }
+    return "";
+}
+
 } // namespace blink