Bug 1551782. Remove now-unused nsCOMArray::Forget and nsCOMArray::Adopt methods. r=froydnj

Differential Revision: https://phabricator.services.mozilla.com/D31246

--HG--
extra : moz-landing-system : lando

xpcom/ds/nsCOMArray.cpp

@@ -250,24 +250,3 @@ bool nsCOMArray_base::SetCount(int32_t aNewCount) {
   mArray.SetLength(aNewCount);
   return true;
 }
-
-void nsCOMArray_base::Adopt(nsISupports** aElements, uint32_t aSize) {
-  Clear();
-  mArray.AppendElements(aElements, aSize);
-
-  // Free the allocated array as well.
-  free(aElements);
-}
-
-uint32_t nsCOMArray_base::Forget(nsISupports*** aElements) {
-  uint32_t length = Length();
-  size_t array_size = sizeof(nsISupports*) * length;
-  nsISupports** array = static_cast<nsISupports**>(moz_xmalloc(array_size));
-  memmove(array, Elements(), array_size);
-  *aElements = array;
-  // Don't Release the contained pointers; the caller of the method will
-  // do this eventually.
-  mArray.Clear();
-
-  return length;
-}

xpcom/ds/nsCOMArray.h

@@ -94,9 +94,6 @@ class nsCOMArray_base {
     mArray.SwapElements(aOther.mArray);
   }
 
-  void Adopt(nsISupports** aElements, uint32_t aCount);
-  uint32_t Forget(nsISupports*** aElements);
-
  public:
   // elements in the array (including null elements!)
   int32_t Count() const { return mArray.Length(); }
@@ -345,33 +342,6 @@ class nsCOMArray : public nsCOMArray_base {
     nsCOMArray_base::SwapElements(aOther);
   }
 
-  /**
-   * Adopt parameters that resulted from an XPIDL outparam. The aElements
-   * parameter will be freed as a result of the call.
-   *
-   * Example usage:
-   * nsCOMArray<nsISomeInterface> array;
-   * nsISomeInterface** elements;
-   * uint32_t length;
-   * ptr->GetSomeArray(&elements, &length);
-   * array.Adopt(elements, length);
-   */
-  void Adopt(T** aElements, uint32_t aSize) {
-    nsCOMArray_base::Adopt(reinterpret_cast<nsISupports**>(aElements), aSize);
-  }
-
-  /**
-   * Export the contents of this array to an XPIDL outparam. The array will be
-   * Clear()'d after this operation.
-   *
-   * Example usage:
-   * nsCOMArray<nsISomeInterface> array;
-   * *length = array.Forget(retval);
-   */
-  uint32_t Forget(T*** aElements) {
-    return nsCOMArray_base::Forget(reinterpret_cast<nsISupports***>(aElements));
-  }
-
   // Methods for range-based for loops.
   iterator begin() { return iterator(*this, 0); }
   const_iterator begin() const { return const_iterator(*this, 0); }