DevTools: follow-up to crrev.com/2570783006

third_party/WebKit/Source/devtools/front_end/ui/inspectorCommon.css

Index: third_party/WebKit/Source/devtools/front_end/ui/inspectorCommon.css
diff --git a/third_party/WebKit/Source/devtools/front_end/ui/inspectorCommon.css b/third_party/WebKit/Source/devtools/front_end/ui/inspectorCommon.css
index f0fb819a45ab992e034c519cd6c2231e601c0f59..be44c322b7f61a4d7e417a80a13e05ea4ef517e7 100644
--- a/third_party/WebKit/Source/devtools/front_end/ui/inspectorCommon.css
+++ b/third_party/WebKit/Source/devtools/front_end/ui/inspectorCommon.css
@@ -331,7 +331,7 @@ label[is=dt-icon-label] {
     background-color: rgb(110, 110, 110);
 }
 
-.spritesheet-smallicons {
+.spritesheet-smallicons:not(.icon-mask) {
     background-image: -webkit-image-set(url(Images/smallIcons.png) 1x, url(Images/smallIcons_2x.png) 2x);
     background-size: 190px 30px;
 }
@@ -341,7 +341,7 @@ label[is=dt-icon-label] {
     -webkit-mask-size: 190px 30px;
 }
 
-.spritesheet-largeicons {
+.spritesheet-largeicons:not(.icon-mask) {
     background-image: -webkit-image-set(url(Images/toolbarButtonGlyphs.png) 1x, url(Images/toolbarButtonGlyphs_2x.png) 2x);
     background-size: 352px 168px;
 }