Change FrameTree to return Frames instead of LocalFrames.

Source/bindings/v8/custom/V8WindowCustom.cpp

Index: Source/bindings/v8/custom/V8WindowCustom.cpp
diff --git a/Source/bindings/v8/custom/V8WindowCustom.cpp b/Source/bindings/v8/custom/V8WindowCustom.cpp
index 962b975cc86e267933c6dec4b18fa59167a5bad6..9856bee9a3c4366f093de4d4330d93366c06ce46 100644
--- a/Source/bindings/v8/custom/V8WindowCustom.cpp
+++ b/Source/bindings/v8/custom/V8WindowCustom.cpp
@@ -396,7 +396,7 @@ void V8Window::namedPropertyGetterCustom(v8::Local<v8::String> name, const v8::P
 
     // Search sub-frames.
     AtomicString propName = toCoreAtomicString(name);
-    LocalFrame* child = frame->tree().scopedChild(propName);
+    Frame* child = frame->tree().scopedChild(propName);
     if (child) {
         v8SetReturnValueFast(info, child->domWindow(), window);
         return;
@@ -463,7 +463,7 @@ bool V8Window::namedSecurityCheckCustom(v8::Local<v8::Object> host, v8::Local<v8
         DEFINE_STATIC_LOCAL(const AtomicString, nameOfProtoProperty, ("__proto__", AtomicString::ConstructFromLiteral));
 
         AtomicString name = toCoreAtomicString(key.As<v8::String>());
-        LocalFrame* childFrame = target->tree().scopedChild(name);
+        Frame* childFrame = target->tree().scopedChild(name);
         // Notice that we can't call HasRealNamedProperty for ACCESS_HAS
         // because that would generate infinite recursion.
         if (type == v8::ACCESS_HAS && childFrame)
@@ -502,7 +502,7 @@ bool V8Window::indexedSecurityCheckCustom(v8::Local<v8::Object> host, uint32_t i
     if (target->loader().stateMachine()->isDisplayingInitialEmptyDocument())
         target->loader().didAccessInitialDocument();
 
-    LocalFrame* childFrame =  target->tree().scopedChild(index);
+    Frame* childFrame = target->tree().scopedChild(index);
 
     // Notice that we can't call HasRealNamedProperty for ACCESS_HAS
     // because that would generate infinite recursion.