[filebrowser] First step to image editor.

chrome/browser/resources/file_manager/js/image_editor/image_editor.css

Index: chrome/browser/resources/file_manager/js/image_editor/image_editor.css
===================================================================
--- chrome/browser/resources/file_manager/js/image_editor/image_editor.css	(revision 98602)
+++ chrome/browser/resources/file_manager/js/image_editor/image_editor.css	(working copy)
@@ -6,7 +6,7 @@
 
 /* Main container div for the editor */
 .image-editor {
-  background: white;
+  background: black;
   position: absolute;
   width: 100%;
   height: 100%;
@@ -15,7 +15,11 @@
 /* Editor toolbar */
 .toolbar {
   width: 100%;
-  height: 32px;
+  height: 100%;
+  display: -webkit-box;
+  -webkit-box-orient: horizontal;
+  -webkit-box-align: center;
+  -webkit-box-pack: center;
 }
 
 .toolbar button {
@@ -36,8 +40,9 @@
 .canvas-wrapper {
   position: absolute;
   width: 100%;
-  top: 32px;
+  top: 0px;
   bottom: 0;
+  background: black;
 }
 
 /* Scaling controls */