Send early ShowPress on TapDown when page isn't scrollable/pinchable.

Source/core/loader/EmptyClients.h

Index: Source/core/loader/EmptyClients.h
diff --git a/Source/core/loader/EmptyClients.h b/Source/core/loader/EmptyClients.h
index 03cff892d90706482a0df659abde94c09873a82e..3ef933fd0d261fb4e1eeb92eff482bb2c0d278a3 100644
--- a/Source/core/loader/EmptyClients.h
+++ b/Source/core/loader/EmptyClients.h
@@ -171,6 +171,9 @@ public:
     virtual void annotatedRegionsChanged() OVERRIDE { }
     virtual bool paintCustomOverhangArea(GraphicsContext*, const IntRect&, const IntRect&, const IntRect&) OVERRIDE { return false; }
     virtual String acceptLanguages() OVERRIDE;
+
+    virtual float minimumPageScaleFactor() const OVERRIDE { return 0; };
+    virtual float maximumPageScaleFactor() const OVERRIDE { return 0; };

[Rick Byers, 2014/02/14 21:27:53]

perhaps 1 would be a better default maximum (and probably the best default
minimum too).  Code may be confused if the only valid scale _factor_ is 0.

 };
 
 class EmptyFrameLoaderClient FINAL : public FrameLoaderClient {