Move Frame to the Oilpan heap.

Source/core/editing/TypingCommand.cpp

Index: Source/core/editing/TypingCommand.cpp
diff --git a/Source/core/editing/TypingCommand.cpp b/Source/core/editing/TypingCommand.cpp
index 47830a99e7d67baf690af586b3c3494656ccbd2b..f0b7aeab8b8c0e44ff3e95c46abc85ca7e0d8029 100644
--- a/Source/core/editing/TypingCommand.cpp
+++ b/Source/core/editing/TypingCommand.cpp
@@ -40,6 +40,7 @@
 #include "core/editing/VisiblePosition.h"
 #include "core/editing/VisibleUnits.h"
 #include "core/editing/htmlediting.h"
+#include "core/frame/FrameProtector.h"
 #include "core/frame/LocalFrame.h"
 #include "core/html/HTMLBRElement.h"
 #include "core/rendering/RenderObject.h"
@@ -169,7 +170,8 @@ void TypingCommand::insertText(Document& document, const String& text, Options o
 // FIXME: We shouldn't need to take selectionForInsertion. It should be identical to FrameSelection's current selection.
 void TypingCommand::insertText(Document& document, const String& text, const VisibleSelection& selectionForInsertion, Options options, TextCompositionType compositionType)
 {
-    RefPtr<LocalFrame> frame = document.frame();
+    LocalFrame* frame = document.frame();
+    FrameProtector protect(frame);
     ASSERT(frame);
 
     VisibleSelection currentSelection = frame->selection().selection();
@@ -179,7 +181,7 @@ void TypingCommand::insertText(Document& document, const String& text, const Vis
     // Set the starting and ending selection appropriately if we are using a selection
     // that is different from the current selection.  In the future, we should change EditCommand
     // to deal with custom selections in a general way that can be used by all of the commands.
-    if (RefPtrWillBeRawPtr<TypingCommand> lastTypingCommand = lastTypingCommandIfStillOpenForTyping(frame.get())) {
+    if (RefPtrWillBeRawPtr<TypingCommand> lastTypingCommand = lastTypingCommandIfStillOpenForTyping(frame)) {
         if (lastTypingCommand->endingSelection() != selectionForInsertion) {
             lastTypingCommand->setStartingSelection(selectionForInsertion);
             lastTypingCommand->setEndingSelection(selectionForInsertion);
@@ -193,7 +195,7 @@ void TypingCommand::insertText(Document& document, const String& text, const Vis
     }
 
     RefPtrWillBeRawPtr<TypingCommand> cmd = TypingCommand::create(document, InsertText, newText, options, compositionType);
-    applyTextInsertionCommand(frame.get(), cmd, selectionForInsertion, currentSelection);
+    applyTextInsertionCommand(frame, cmd, selectionForInsertion, currentSelection);
 }
 
 void TypingCommand::insertLineBreak(Document& document, Options options)