Chrome::client() should return a ChromeClient reference.

Source/core/rendering/svg/RenderSVGRoot.cpp

Index: Source/core/rendering/svg/RenderSVGRoot.cpp
diff --git a/Source/core/rendering/svg/RenderSVGRoot.cpp b/Source/core/rendering/svg/RenderSVGRoot.cpp
index 3e63935b13d1cc7bfd47d01161016b5e70a647fc..47c86deaeba8572b234d5f57f70299056a4f39b7 100644
--- a/Source/core/rendering/svg/RenderSVGRoot.cpp
+++ b/Source/core/rendering/svg/RenderSVGRoot.cpp
@@ -113,19 +113,10 @@ bool RenderSVGRoot::isEmbeddedThroughSVGImage() const
     if (!node())
         return false;
 
-    Frame* frame = node()->document()->frame();
-    if (!frame)
-        return false;
-
     // Test whether we're embedded through an img.
-    if (!frame->page())
-        return false;
-
-    ChromeClient* chromeClient = frame->page()->chrome().client();
-    if (!chromeClient || !chromeClient->isSVGImageChromeClient())
-        return false;
-
-    return true;
+    if (Page* page = node()->document()->page())
+        return page->chrome().client().isSVGImageChromeClient();
+    return false;
 }
 
 bool RenderSVGRoot::isEmbeddedThroughFrameContainingSVGDocument() const