Trade: use Corrade::Containers::Array in AbstractImageConverter.

src/Trade/AbstractImageConverter.cpp

@@ -24,6 +24,7 @@
 
 #include "AbstractImageConverter.h"
 
+#include <Containers/Array.h>
 #include <Utility/Assert.h>
 
 namespace Magnum { namespace Trade {
@@ -39,7 +40,7 @@ Image2D* AbstractImageConverter::convertToImage(const Image2D* const) const {
     CORRADE_ASSERT(false, "Trade::AbstractImageConverter::convertToImage(): feature not implemented", nullptr);
 }
 
-std::pair<const unsigned char*, std::size_t> AbstractImageConverter::convertToData(const Image2D* const) const {
+Containers::Array<unsigned char> AbstractImageConverter::convertToData(const Image2D* const) const {
     CORRADE_ASSERT(features() & Feature::ConvertToData,
         "Trade::AbstractImageConverter::convertToData(): feature advertised but not implemented", {});
 

src/Trade/AbstractImageConverter.h

@@ -100,7 +100,7 @@ class MAGNUM_EXPORT AbstractImageConverter: public PluginManager::AbstractPlugin
          * Returns data pointer and size on success, `nullptr` otherwise.
          * @see features(), convertToImage(), convertToFile()
          */
-        virtual std::pair<const unsigned char*, std::size_t> convertToData(const Image2D* image) const;
+        virtual Containers::Array<unsigned char> convertToData(const Image2D* image) const;
 
         /**
          * @brief Convert image and save it to file