[CardMedia] Fix propTypes to allow component prop (#19790)

Author: stevenmusumeche

packages/material-ui/src/CardMedia/CardMedia.js

@@ -66,8 +66,10 @@ CardMedia.propTypes = {
    * The content of the component.
    */
   children: chainPropTypes(PropTypes.node, props => {
-    if (!props.children && !props.image && !props.src) {
-      return new Error('Material-UI: either `children`, `image` or `src` prop must be specified.');
+    if (!props.children && !props.image && !props.src && !props.component) {
+      return new Error(
+        'Material-UI: either `children`, `image`, `src` or `component` prop must be specified.',
+      );
     }
     return null;
   }),

packages/material-ui/src/CardMedia/CardMedia.test.js

@@ -91,13 +91,13 @@ describe('<CardMedia />', () => {
       PropTypes.resetWarningCache();
     });
 
-    it('warns when neither `children`, nor `image`, nor `src` are provided', () => {
+    it('warns when neither `children`, nor `image`, nor `src`, nor `component` are provided', () => {
       mount(<CardMedia />);
 
       assert.strictEqual(consoleErrorMock.callCount(), 1);
       assert.include(
         consoleErrorMock.args()[0][0],
-        'Material-UI: either `children`, `image` or `src` prop must be specified.',
+        'Material-UI: either `children`, `image`, `src` or `component` prop must be specified.',
       );
     });
   });