Add Timeline Developer Profiles for faster category switching

runtime/observatory/lib/src/elements/timeline_page.html

Index: runtime/observatory/lib/src/elements/timeline_page.html
diff --git a/runtime/observatory/lib/src/elements/timeline_page.html b/runtime/observatory/lib/src/elements/timeline_page.html
index 175839c633b25bb8df5490f81f698a60566946e3..433c24278ccd856e057c5c72ace5d825f3aa1322 100644
--- a/runtime/observatory/lib/src/elements/timeline_page.html
+++ b/runtime/observatory/lib/src/elements/timeline_page.html
@@ -9,7 +9,7 @@
       <top-nav-menu></top-nav-menu>
       <vm-nav-menu vm="{{ app.vm }}"></vm-nav-menu>
       <nav-menu link="{{ makeLink('/timeline') }}" anchor="timeline" last="{{ true }}"></nav-menu>
-      <nav-refresh id="refresh" callback="{{ refresh }}" label="Get"></nav-refresh>
+      <nav-refresh id="refresh" callback="{{ refresh }}" label="Refresh"></nav-refresh>
       <nav-refresh callback="{{ clear }}" label="Clear"></nav-refresh>
       <nav-refresh callback="{{ saveTimeline }}" label="Save"></nav-refresh>
       <nav-refresh callback="{{ loadTimeline }}" label="Load"></nav-refresh>
@@ -22,6 +22,18 @@
           <div class="memberValue">{{ recorderName }}</div>
         </div>
         <div class="memberItem">
+          <div class="memberName">Recorded Streams Profile:</div>
+          <div class="memberValue">
+            <select id="selectPreset" value="{{ streamPresetSelector }}">
+              <option value="None">None</option>
+              <option value="Dart">Dart Developer</option>
+              <option value="VM">VM Developer</option>
+              <option value="All">All</option>
+              <option value="Custom">Custom</option>
+            </select>
+          </div>
+        </div>
+        <div class="memberItem">
           <div class="memberName">Recorded Streams:</div>
           <div id="streamList" class="memberValue"></div>
         </div>