Oilpan: move Range object to the oilpan heap.

Source/web/WebViewImpl.cpp

Index: Source/web/WebViewImpl.cpp
diff --git a/Source/web/WebViewImpl.cpp b/Source/web/WebViewImpl.cpp
index 4dbb28f09e84cb73db9682bc3a37649d8a3d3c58..1ff82b075221a5ccc015bbe8abd79fd0cc54a6bd 100644
--- a/Source/web/WebViewImpl.cpp
+++ b/Source/web/WebViewImpl.cpp
@@ -1943,7 +1943,7 @@ bool WebViewImpl::setComposition(
     // editable because JavaScript may delete a parent node of the composition
     // node. In this case, WebKit crashes while deleting texts from the parent
     // node, which doesn't exist any longer.
-    RefPtr<Range> range = inputMethodController.compositionRange();
+    RefPtrWillBeRawPtr<Range> range = inputMethodController.compositionRange();
     if (range) {
         Node* node = range->startContainer();
         if (!node || !node->isContentEditable())
@@ -2007,7 +2007,7 @@ bool WebViewImpl::compositionRange(size_t* location, size_t* length)
     if (!focused || !m_imeAcceptEvents)
         return false;
 
-    RefPtr<Range> range = focused->inputMethodController().compositionRange();
+    RefPtrWillBeRawPtr<Range> range = focused->inputMethodController().compositionRange();
     if (!range)
         return false;
 
@@ -2048,7 +2048,7 @@ WebTextInputInfo WebViewImpl::textInputInfo()
     if (info.value.isEmpty())
         return info;
 
-    if (RefPtr<Range> range = selection.selection().firstRange()) {
+    if (RefPtrWillBeRawPtr<Range> range = selection.selection().firstRange()) {
         PlainTextRange plainTextRange(PlainTextRange::create(*node, *range.get()));
         if (plainTextRange.isNotNull()) {
             info.selectionStart = plainTextRange.start();
@@ -2056,7 +2056,7 @@ WebTextInputInfo WebViewImpl::textInputInfo()
         }
     }
 
-    if (RefPtr<Range> range = focused->inputMethodController().compositionRange()) {
+    if (RefPtrWillBeRawPtr<Range> range = focused->inputMethodController().compositionRange()) {
         PlainTextRange plainTextRange(PlainTextRange::create(*node, *range.get()));
         if (plainTextRange.isNotNull()) {
             info.compositionStart = plainTextRange.start();
@@ -2159,11 +2159,11 @@ bool WebViewImpl::selectionBounds(WebRect& anchor, WebRect& focus) const
     if (selection.isCaret()) {
         anchor = focus = selection.absoluteCaretBounds();
     } else {
-        RefPtr<Range> selectedRange = selection.toNormalizedRange();
+        RefPtrWillBeRawPtr<Range> selectedRange = selection.toNormalizedRange();
         if (!selectedRange)
             return false;
 
-        RefPtr<Range> range(Range::create(selectedRange->startContainer()->document(),
+        RefPtrWillBeRawPtr<Range> range(Range::create(selectedRange->startContainer()->document(),
             selectedRange->startContainer(),
             selectedRange->startOffset(),
             selectedRange->startContainer(),