Roll reference builds to 35.0.1916.114.

chrome_linux64/resources/inspector/flameChart.css

 .overview-container {
     overflow: hidden;
     position: absolute;
     top: 0;
     width: 100%;
     height: 80px;
 }
 
 .chart-container {
-    overflow: hidden;
-    position: absolute;
-    top: 80px;
-    width: 100%;
-    bottom: 0;
+    flex: auto;
 }
 
 #flame-chart-overview-grid .resources-dividers-label-bar {
     pointer-events: auto;
 }
 
+.flame-chart-main-pane {
+    overflow: hidden;
+}
+
+.flame-chart-overview-pane {
+    flex: 0 0 80px !important;
+}
+
 #flame-chart-overview-container {
     border-bottom: 1px solid rgba(0, 0, 0, 0.3);
 }
 
 .flame-chart-overview-canvas {
     position: absolute;
     top: 20px;
     left: 0;
     right: 0;
     bottom: 0;
 }
 
 .chart-container .entry-info {
     position: absolute;
     left: 10px;
     top: 25px;
     background-color: rgba(255, 255, 255, 0.8);
     pointer-events: none;
 }
 
 .chart-container .entry-info .title {
     font-weight: bold;
+}
+
+.flame-chart-highlight-element {
+    background-color: black;
+    position: absolute;
+    opacity: 0.2;
+    pointer-events: none;
+}
+
+.flame-chart-selected-element {
+    position: absolute;
+    pointer-events: none;
+    border-color: rgb(56, 121, 217);
+    border-width: 2px;
+    border-style: solid;
+    background-color: rgba(56, 121, 217, 0.2);
+}
+
+.flame-chart-v-scroll {
+    flex: 0 0 15px;
+    overflow-x: hidden;
+    overflow-y: scroll;
 }