DevTools: remove style reuse from flamechart clients, prepare it to become a component.

Source/devtools/front_end/profilesPanel.css

Index: Source/devtools/front_end/profilesPanel.css
diff --git a/Source/devtools/front_end/profilesPanel.css b/Source/devtools/front_end/profilesPanel.css
index 055b222243f602410c1aacaebb06712a57095d55..79cc52d66578e6a514a91f5269d4794022691ec1 100644
--- a/Source/devtools/front_end/profilesPanel.css
+++ b/Source/devtools/front_end/profilesPanel.css
@@ -264,3 +264,31 @@ body.inactive .profile-launcher-view-content button.running:not(.status-bar-item
     margin-top: 14px;
     margin-left: 0px;
 }
+
+.cpu-profile-flame-chart-overview-container {
+    overflow: hidden;
+    position: absolute;
+    top: 0;
+    width: 100%;
+    height: 80px;
+}
+
+#cpu-profile-flame-chart-overview-container {
+    border-bottom: 1px solid rgba(0, 0, 0, 0.3);
+}
+
+.cpu-profile-flame-chart-overview-canvas {
+    position: absolute;
+    top: 20px;
+    left: 0;
+    right: 0;
+    bottom: 0;
+}
+
+#cpu-profile-flame-chart-overview-grid .resources-dividers-label-bar {
+    pointer-events: auto;
+}
+
+.cpu-profile-flame-chart-overview-pane {
+    flex: 0 0 80px !important;
+}