Introduce two utility elements for the cpu profiler

runtime/observatory/lib/src/elements/css/shared.css

 /* Global styles */
 * {
   margin: 0;
   padding: 0;
   font: 400 14px 'Montserrat', sans-serif;
   color: #333;
   box-sizing: border-box;
 }
 
 .content {
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   border-top-left-radius:4px;
 }
 
 .list-group-item:last-child {
   margin-bottom: 0;
   /* rounded bottom corners */
   border-bottom-right-radius: 4px;
   border-bottom-left-radius:4px;
 }
 
+.full {
+  height: 100%;
+  width: 100;
+}
+
+.flex-row {
+  display: flex;
+  flex-direction: row;
+}
+
 /* Flex row container */
 .flex-row {
   display: flex;
   flex-direction: row;
 }
 
 .flex-row-wrap {
   display: flex;
   flex-direction: row;
   flex-wrap: wrap;
@@ skipping 213 matching lines @@
     -webkit-transform: translate3d(10px, 0, 0);
     -ms-transform: translate3d(10px, 0, 0);
     transform: translate3d(10px, 0, 0);
   }
 }
 
 .shake {
   animation: shake 0.5s;
   -webkit-animation: shake 0.5s;
 }