Oilpan: Move ChromeClient classes into Oilpan heap.

Source/web/WebViewImpl.cpp

Index: Source/web/WebViewImpl.cpp
diff --git a/Source/web/WebViewImpl.cpp b/Source/web/WebViewImpl.cpp
index 6eb50580c2bf29e160f74b222c7187075b105a8d..919dda1655fc849c62d7e7c0896d5dd627fecc47 100644
--- a/Source/web/WebViewImpl.cpp
+++ b/Source/web/WebViewImpl.cpp
@@ -412,7 +412,7 @@ HashSet<WebViewImpl*>& WebViewImpl::allInstances()
 WebViewImpl::WebViewImpl(WebViewClient* client)
     : m_client(client)
     , m_spellCheckClient(0)
-    , m_chromeClientImpl(this)
+    , m_chromeClientImpl(ChromeClientImpl::create(this))
     , m_contextMenuClientImpl(this)
     , m_dragClientImpl(this)
     , m_editorClientImpl(this)
@@ -460,7 +460,7 @@ WebViewImpl::WebViewImpl(WebViewClient* client)
     , m_elasticOverscroll(FloatSize())
 {
     Page::PageClients pageClients;
-    pageClients.chromeClient = &m_chromeClientImpl;
+    pageClients.chromeClient = m_chromeClientImpl.get();
     pageClients.contextMenuClient = &m_contextMenuClientImpl;
     pageClients.editorClient = &m_editorClientImpl;
     pageClients.dragClient = &m_dragClientImpl;