Move unique name generation and tracking into //content.

third_party/WebKit/Source/web/LocalFrameClientImpl.cpp

Index: third_party/WebKit/Source/web/LocalFrameClientImpl.cpp
diff --git a/third_party/WebKit/Source/web/LocalFrameClientImpl.cpp b/third_party/WebKit/Source/web/LocalFrameClientImpl.cpp
index 73c1b65eae7e909e3c67d43e77b7aad96d22c5d4..14ef93978f2efbfad662a45f1820b4ba919da6a6 100644
--- a/third_party/WebKit/Source/web/LocalFrameClientImpl.cpp
+++ b/third_party/WebKit/Source/web/LocalFrameClientImpl.cpp
@@ -858,11 +858,10 @@ void LocalFrameClientImpl::frameFocused() const {
     m_webFrame->client()->frameFocused();
 }
 
-void LocalFrameClientImpl::didChangeName(const String& name,
-                                         const String& uniqueName) {
+void LocalFrameClientImpl::didChangeName(const String& name) {
   if (!m_webFrame->client())
     return;
-  m_webFrame->client()->didChangeName(name, uniqueName);
+  m_webFrame->client()->didChangeName(name);
 }
 
 void LocalFrameClientImpl::didEnforceInsecureRequestPolicy(