[DevTools] Extract small-bubble component.

third_party/WebKit/Source/devtools/front_end/source_frame/cmdevtools.css

 .CodeMirror {
     line-height: 1.2em !important;
     background-color: transparent !important;
     color: #222;
 }
 
 .CodeMirror-linewidget {
     overflow: visible !important;
 }
 
@@ skipping 283 matching lines @@
 
 .text-editor-row-message:first-child {
     border-top-width: 0;
 }
 
 .text-editor-row-message {
     border-top: 1px solid rgb(215, 215, 215);
     line-height: 1.2;
     white-space: nowrap;
     display: flex;
+    align-items: center;
+    justify-content: flex-start;
 }
 
-.text-editor-row-message .bubble-repeat-count {
-    margin-right: 1ex;
-    margin-top: -1px;
+.text-editor-row-message .message-repeat-count {
+    margin-right: 0.5em;
 }
 
 .CodeMirror .text-editor-line-decoration-icon {
     position: absolute;
     cursor: pointer;
     right: -16px;
     top: -9px;
 }
 
 .CodeMirror .text-editor-line-with-warning:not(.cm-execution-line) {
@@ skipping 33 matching lines @@
     background-color: transparent;
 }
 
 .-theme-with-dark-background .CodeMirror .CodeMirror-selected {
     background-color: #454545;
 }
 
 .CodeMirror .auto-complete-text{
     color: rgb(128,128,128);
 }