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 562484e7fd1a4d3ed832efc95f0109442bc1a05a..133d12150b95424e70535b2050011b6892bd42b7 100644
--- a/Source/web/WebViewImpl.cpp
+++ b/Source/web/WebViewImpl.cpp
@@ -409,7 +409,7 @@ 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)
@@ -457,7 +457,7 @@ 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;