DevTools: make toolbar button click targets square

Source/devtools/front_end/ui/toolbar.css

Index: Source/devtools/front_end/ui/toolbar.css
diff --git a/Source/devtools/front_end/ui/toolbar.css b/Source/devtools/front_end/ui/toolbar.css
index 08b4f03dfbff22a3cc31de48b80f853e4fe1838c..3f4acdef116af0c8aaefccd1f755e61dbb8aae2c 100644
--- a/Source/devtools/front_end/ui/toolbar.css
+++ b/Source/devtools/front_end/ui/toolbar.css
@@ -6,12 +6,13 @@
 
 :host {
     flex: none;
+    padding: 0 2px;
 }
 
 .toolbar-shadow {
     position: relative;
     white-space: nowrap;
-    height: 24px;
+    height: 26px;
     overflow: hidden;
     z-index: 12;
     display: flex;
@@ -19,14 +20,10 @@
     align-items: center;
 }
 
-:host-context(.material) .toolbar-shadow {
-    height: 28px;
-}
-
 .toolbar-shadow.vertical {
     flex-direction: column;
     height: auto;
-    width: 32px;
+    width: 26px;
 }
 
 .toolbar-shadow.floating {
@@ -35,29 +32,20 @@
     background-color: white;
     border: 1px solid #ccc;
     margin-top: -1px;
-    width: 32px;
-}
-
-.toolbar-shadow > div {
-    display: inline-flex;
-    overflow: visible;
-    margin: 0 2px;
+    width: 26px;
+    left: -2px;
 }
 
 .toolbar-item {
     position: relative;
     display: flex;
-    border: 0 transparent none;
     background-color: transparent;
     flex: none;
     align-items: center;
     justify-content: center;
     padding: 0;
-    height: 24px;
-}
-
-:host-context(.material) .toolbar-item {
-    height: 28px;
+    height: 26px;
+    border: none;
 }
 
 .toolbar-text {
@@ -83,22 +71,13 @@
 }
 
 .long-click-glyph {
-    background-color: rgba(0, 0, 0, 0.75);
+    background-color: #595959;
     -webkit-mask-image: url(Images/toolbarButtonGlyphs.png);
     -webkit-mask-position: -288px -48px;
     -webkit-mask-size: 352px 144px;
     z-index: 1;
     width: 32px;
-    height: 24px;
-}
-
-.narrow .long-click-glyph {
-    top: -2px;
-    left: -7px;
-}
-
-:host-context(.material) .long-click-glyph {
-    top: 2px;
+    height: 26px;
 }
 
 @media (-webkit-min-device-pixel-ratio: 1.5) {
@@ -107,26 +86,15 @@
 }
 } /* media */
 
-.narrow button.toolbar-item {
-    width: 26px;
-}
-
-.narrow button.toolbar-item .glyph {
-    margin: 0 -3px;
-}
-
 button.toolbar-item {
-    width: 30px;
-}
-
-:host-context(.material) button.toolbar-item {
-    width: 32px;
+    width: 26px;
 }
 
-button.toolbar-item:hover,
+button.toolbar-item:enabled:hover,
 .toolbar-item.checkbox:hover,
 .toolbar-counter:hover {
     background-color: rgba(110, 110, 110, 0.1);
+    transition: background-color 150ms cubic-bezier(0, 0, 0.2, 1);
 }
 
 button.toolbar-item.toggled-on .glyph {
@@ -205,7 +173,7 @@ select.toolbar-item {
 }
 
 .toolbar-item.checkbox {
-    padding-right: 5px;
+    padding: 0 5px 0 2px;
 }
 
 .toolbar-item > .glyph {
@@ -218,11 +186,14 @@ select.toolbar-item {
     height: 24px;
 }
 
-:host-context(:not(.material)) .toolbar-item > .glyph {
+.toolbar-item > .glyph {
     position: relative;
-    left: -1px;
+    left: -3px;
 }
 
+.toolbar-item > .long-click-glyph {
+    left: -5px;
+}
 
 @media (-webkit-min-device-pixel-ratio: 1.5) {
 .toolbar-item > .glyph {
@@ -237,7 +208,7 @@ select.toolbar-item {
 .toolbar-counter {
     cursor: pointer;
     padding: 0 2px;
-    min-width: 30px;
+    min-width: 26px;
 }
 
 .toolbar-counter-item {
@@ -257,21 +228,18 @@ select.toolbar-item {
 }
 
 .toolbar-divider {
-    margin-left: 7px;
-    border-right: 1px solid hsla(0, 0%, 0%, 0.1);
-}
-
-:host-context(.material) .toolbar-divider {
-    height: 18px;
+    background-color: #ccc;
+    width: 1px;
+    margin: 2px 2px;
+    height: 17px;
 }
 
 .toolbar-group-label {
-    margin-left: 6px;
+    margin-left: 5px;
     margin-right: 3px;
     color: #888;
 }
 
-
 /* Predefined items */
 
 .dock-toolbar-item.toggled-undocked .glyph {
@@ -305,11 +273,12 @@ select.toolbar-item {
 .emulation-toolbar-item.warning::after {
     background-image: url(Images/toolbarButtonGlyphs.png);
     background-size: 352px 144px;
-    width: 15px;
-    height: 11px;
+    width: 10px;
+    height: 12px;
     content: "";
-    position: relative;
-    top: 4px;
+    position: absolute;
+    right: 3px;
+    bottom: 2px;
     background-position: -202px -107px;
     z-index: 1;
 }