Don't ignore OOM exceptions.

public/web/WebFrameClient.h

Index: public/web/WebFrameClient.h
diff --git a/public/web/WebFrameClient.h b/public/web/WebFrameClient.h
index 5f33337a572b7591317c23bef055ce9f828a8d01..ac7d470ecb9e5bf23118158d9691a5ce82b19239 100644
--- a/public/web/WebFrameClient.h
+++ b/public/web/WebFrameClient.h
@@ -288,9 +288,6 @@ public:
 
     // Script notifications ------------------------------------------------
 
-    // Script in the page tried to allocate too much memory.
-    virtual void didExhaustMemoryAvailableForScript(WebFrame*) { }
-
     // Notifies that a new script context has been created for this frame.
     // This is similar to didClearWindowObject but only called once per
     // frame context.