Remove unused images and CSS properties.

BUG=none
TEST=none

Review URL: https://codereview.chromium.org/1616673003

Cr-Commit-Position: refs/heads/master@{#371464}

ui/file_manager/file_manager/foreground/css/common.css

@@ -7,114 +7,6 @@
   display: none !important;
 }
 
-/* This file contains "borrowed" copy of standard styles. To simplify merging,
- * when altering, please preserve original property value by adding comments. */
-input.common[type='checkbox'],
-input.common[type='radio'] {
-  -webkit-appearance: none;
-  border: 1px solid #555;
-  border-radius: 1px;
-  box-sizing: border-box;
-  cursor: default;
-  height: 13px;
-  margin: 0;
-  opacity: 0.4;
-  width: 13px;
-}
-
-input.common[type='checkbox']:hover,
-input.common[type='checkbox']:checked,
-input.common[type='radio']:hover,
-input.common[type='radio']:checked {
-  opacity: 1;
-}
-
-input.common[type='checkbox'] {
-  position: relative;
-}
-
-input.common[type='checkbox']:checked::after {
-  background-image: -webkit-image-set(
-    url(../images/common/check_no_box.png) 1x,
-    url(../images/common/2x/check_no_box.png) 2x);
-  background-position: -3px -4px;
-  background-repeat: no-repeat;
-}
-
-input.common[type='checkbox'].white {
-  border: none;
-}
-
-input.common[type='checkbox'].white:not(:checked)::after {
-  background-image: -webkit-image-set(
-    url(../images/common/checkbox_white_unchecked.png) 1x,
-    url(../images/common/2x/checkbox_white_unchecked.png) 2x);
-  background-position: -1px 0;
-}
-
-input.common[type='checkbox'].white:checked::after {
-  background-image: -webkit-image-set(
-    url(../images/common/checkbox_white_checked.png) 1x,
-    url(../images/common/2x/checkbox_white_checked.png) 2x);
-  background-position: -1px 0;
-}
-
-input.common[type='checkbox']::after {
-  content: '';
-  display: flex;
-  height: 15px;
-  left: -2px;
-  position: absolute;
-  top: -2px;
-  width: 17px;
-}
-
-.bubble {
-  background: #FFF;
-  border-radius: 2px;
-  cursor: default;
-  outline: 1px solid rgba(0, 0, 0, 0.2);
-  padding: 16px;
-}
-
-.bubble .pointer {
-  background: -webkit-image-set(
-    url(../images/common/bubble_point_white.png) 1x,
-    url(../images/common/2x/bubble_point_white.png) 2x);
-  display: block;
-  height: 11px;
-  left: 24px;
-  margin: 0 0 0 -5px;
-  outline: none;
-  position: absolute;
-  width: 17px;
-}
-
-.bubble .pointer:not(.bottom) {
-  top: -11px;
-}
-
-.bubble .pointer.bottom {
-  -webkit-transform: rotate(180deg);
-  bottom: -11px;
-}
-
-.bubble .close-x {
-  background: -webkit-image-set(
-    url(../images/common/close_x_gray.png) 1x,
-    url(../images/common/2x/close_x_gray.png) 2x);
-  height: 21px;
-  opacity: 0.3;
-  position: absolute;
-  right: 3px;
-  top: 3px;
-  width: 21px;
-}
-
-.bubble .close-x:hover {
-  opacity: 0.7;
-}
-
 /* "chrome-menu" class overrides some standard menu.css styles, to make custom
    menus in FileBrowser look like native ChromeOS menus. */
 

ui/file_manager/gallery/css/gallery.css

@@ -16,24 +16,52 @@ button:focus {
   outline: 1px solid rgb(77, 144, 254);
 }
 
-input[type='checkbox'] {
-  width: 15px;
-  height: 15px;
+/* TODO(fukino): This style for the bubble is old. Apply new design and remove
+ * these styles. */
+.bubble {
+  background: #FFF;
+  border-radius: 2px;
+  cursor: default;
+  outline: 1px solid rgba(0, 0, 0, 0.2);
+  padding: 16px;
+}
+
+.bubble .pointer {
   background: -webkit-image-set(
-      url(../../file_manager/foreground/images/common/checkbox_white_unchecked.png) 1x,
-      url(../../file_manager/foreground/images/common/2x/checkbox_white_unchecked.png) 2x)
-      -1px -1px;
-  -webkit-appearance: none;
-  display: inline-block;
-  margin: 1px 6px 1px 1px;
-  vertical-align: text-bottom;
+    url(../../file_manager/foreground/images/common/bubble_point_white.png) 1x,
+    url(../../file_manager/foreground/images/common/2x/bubble_point_white.png) 2x);
+  display: block;
+  height: 11px;
+  left: 24px;
+  margin: 0 0 0 -5px;
+  outline: none;
+  position: absolute;
+  width: 17px;
 }
 
-input[type='checkbox']:checked {
+.bubble .pointer:not(.bottom) {
+  top: -11px;
+}
+
+.bubble .pointer.bottom {
+  -webkit-transform: rotate(180deg);
+  bottom: -11px;
+}
+
+.bubble .close-x {
   background: -webkit-image-set(
-      url(../../file_manager/foreground/images/common/checkbox_white_checked.png) 1x,
-      url(../../file_manager/foreground/images/common/2x/checkbox_white_checked.png) 2x)
-      -1px -1px;
+    url(../../file_manager/foreground/images/common/close_x_gray.png) 1x,
+    url(../../file_manager/foreground/images/common/2x/close_x_gray.png) 2x);
+  height: 21px;
+  opacity: 0.3;
+  position: absolute;
+  right: 3px;
+  top: 3px;
+  width: 21px;
+}
+
+.bubble .close-x:hover {
+  opacity: 0.7;
 }
 
 paper-ripple,