Bug 733764 - Make forceRedraw a no-op. r=jwatt

dom/smil/test/test_smilChangeAfterFrozen.xhtml

@@ -380,7 +380,8 @@ function testPercentUnitChangeOnLength()
   // can be updated.
   todo_is(gCircle.cy.animVal.value, 100,
      "Checking animated length=100% after animating but before reflow");
-  gSvg.forceRedraw();
+  // force a layout flush (Bug 627594)
+  gSvg.getCTM();
   // Even after doing a reflow though we'll still fail due to bug 508206
   // (Relative units used in animation don't update immediately)
   todo_is(gCircle.cy.animVal.value, 100,
@@ -391,7 +392,8 @@ function testPercentUnitChangeOnLength()
      "Checking animated length=100% after animating");
 
   gSvg.setAttribute("height", "50px"); // Change: height: 50px
-  gSvg.forceRedraw(); // Bug 627594
+  // force a layout flush (Bug 627594)
+  gSvg.getCTM();
   gSvg.setCurrentTime(0); // Bug 508206
   is(gCircle.cy.animVal.value, 50,
      "Checking animated length=100% after updating context");

dom/svg/SVGSVGElement.cpp

@@ -307,13 +307,7 @@ SVGSVGElement::UnsuspendRedrawAll()
 void
 SVGSVGElement::ForceRedraw(ErrorResult& rv)
 {
-  nsIDocument* doc = GetComposedDoc();
-  if (!doc) {
-    rv.Throw(NS_ERROR_FAILURE);
-    return;
-  }
-
-  doc->FlushPendingNotifications(Flush_Display);
+  // no-op
 }
 
 void