bug 750026 - get rid of unneeded nsCOMPtrs r=surkov

accessible/src/base/nsAccessible.cpp

@@ -787,7 +787,7 @@ nsAccessible::ChildAtPoint(PRInt32 aX, PRInt32 aY,
   nsPoint offset(presContext->DevPixelsToAppUnits(aX) - screenRect.x,
                  presContext->DevPixelsToAppUnits(aY) - screenRect.y);
 
-  nsCOMPtr<nsIPresShell> presShell = presContext->PresShell();
+  nsIPresShell* presShell = presContext->PresShell();
   nsIFrame *foundFrame = presShell->GetFrameForPoint(frame, offset);
 
   nsIContent* content = nsnull;

accessible/src/base/nsCoreUtils.cpp

@@ -171,7 +171,7 @@ nsCoreUtils::GetAccessKeyFor(nsIContent *aContent)
   if (!aContent->HasAttr(kNameSpaceID_None, nsGkAtoms::accesskey))
     return 0;
 
-  nsCOMPtr<nsIPresShell> presShell = aContent->OwnerDoc()->GetShell();
+  nsIPresShell* presShell = aContent->OwnerDoc()->GetShell();
   if (!presShell)
     return 0;
 

accessible/src/html/nsHTMLSelectAccessible.cpp

@@ -150,7 +150,7 @@ nsHTMLSelectListAccessible::CacheOptSiblings(nsIContent *aParentContent)
       continue;
     }
 
-    nsCOMPtr<nsIAtom> tag = childContent->Tag();
+    nsIAtom* tag = childContent->Tag();
     if (tag == nsGkAtoms::option ||
         tag == nsGkAtoms::optgroup) {
 

accessible/src/msaa/nsAccessibleWrap.cpp

@@ -1686,7 +1686,7 @@ nsAccessibleWrap::GetHWNDFor(nsAccessible *aAccessible)
         bool isVisible = false;
         widget->IsVisible(isVisible);
         if (isVisible) {
-          nsCOMPtr<nsIPresShell> shell(document->PresShell());
+          nsIPresShell* shell = document->PresShell();
           nsIViewManager* vm = shell->GetViewManager();
           if (vm) {
             nsCOMPtr<nsIWidget> rootWidget;

accessible/src/xul/nsXULTreeAccessible.cpp

@@ -187,7 +187,7 @@ nsXULTreeAccessible::ChildAtPoint(PRInt32 aX, PRInt32 aY,
     return nsnull;
 
   nsPresContext *presContext = frame->PresContext();
-  nsCOMPtr<nsIPresShell> presShell = presContext->PresShell();
+  nsIPresShell* presShell = presContext->PresShell();
 
   nsIFrame *rootFrame = presShell->GetRootFrame();
   NS_ENSURE_TRUE(rootFrame, nsnull);

accessible/src/xul/nsXULTreeGridAccessible.cpp

@@ -630,7 +630,7 @@ nsXULTreeGridRowAccessible::ChildAtPoint(PRInt32 aX, PRInt32 aY,
     return nsnull;
 
   nsPresContext *presContext = frame->PresContext();
-  nsCOMPtr<nsIPresShell> presShell = presContext->PresShell();
+  nsIPresShell* presShell = presContext->PresShell();
 
   nsIFrame *rootFrame = presShell->GetRootFrame();
   NS_ENSURE_TRUE(rootFrame, nsnull);