made upload button the same height in chrome and firefox

Signed-off-by: Tom Needham <needham.thomas@gmail.com>

apps/files/css/files.css

@@ -29,8 +29,7 @@
 
 .file_upload_start { -ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=0)"; filter:alpha(opacity=0); opacity:0; z-index:1; position:absolute; left:0; top:0; width:100%; cursor:pointer;}
 .file_upload_filename.active { border-bottom-right-radius:0 }
-.file_upload_filename { z-index:100; padding-left: 0.8em; padding-right: 0.8em; cursor:pointer; border-top-left-radius:0; border-bottom-left-radius:0; }
-.file_upload_filename img { position: absolute; top: 0.4em; left: 0.4em; -ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=100)"; filter:alpha(opacity=100); opacity:1; }
+.file_upload_filename { z-index:100; cursor:pointer; border-top-left-radius:0; border-bottom-left-radius:0; background-image: url('%webroot%/core/img/actions/upload-white.svg'); background-repeat: no-repeat; background-position: center; height: 2.29em; width: 2.5em; }
 
 #upload { position:absolute; right:13.5em; top:0em; }
 #upload #uploadprogressbar { position:relative; display:inline-block; width:10em; height:1.5em; top:.4em; }

apps/files/templates/index.php

@@ -16,7 +16,7 @@
 					<input type="hidden" name="MAX_FILE_SIZE" value="<?php echo $_['uploadMaxFilesize'] ?>" id="max_upload">
 					<input type="hidden" class="max_human_file_size" value="(max <?php echo $_['uploadMaxHumanFilesize']; ?>)">
 					<input type="hidden" name="dir" value="<?php echo $_['dir'] ?>" id="dir">
-					<button class="file_upload_filename">&nbsp;<img class='svg action' alt="Upload" src="<?php echo OCP\image_path("core", "actions/upload-white.svg"); ?>" /></button>
+					<button class="file_upload_filename"></button>
 					<input class="file_upload_start" type="file" name='files[]'/>
 						<a href="#" class="file_upload_button_wrapper" onclick="return false;" title="<?php echo $l->t('Upload'); echo  ' max. '.$_['uploadMaxHumanFilesize'] ?>"></a>
 					<iframe name="file_upload_target_1" class='file_upload_target' src=""></iframe>