Bug 1545582 - Hook JS allocations into the profiler popup; r=canaltinova

Differential Revision: https://phabricator.services.mozilla.com/D34545

--HG--
extra : moz-landing-system : lando

devtools/client/performance-new/popup/background.jsm

@@ -226,6 +226,7 @@ function intializeState() {
     tasktracer: false,
     trackopts: false,
     jstracer: false,
+    jsallocations: false,
   };
 
   if (AppConstants.platform === "android") {

devtools/client/performance-new/popup/popup.html

@@ -169,6 +169,10 @@
               id="perf-settings-feature-checkbox-jstracer" type="checkbox" value="jstracer" />
             <div class="perf-settings-feature-name">JSTracer</div>
             <div class="perf-settings-feature-title">Trace JS engine (Experimental, requires custom build.)</div>
+          </label><label class="perf-settings-checkbox-label perf-settings-feature-label"><input class="perf-settings-checkbox"
+            id="perf-settings-feature-checkbox-jsallocations" type="checkbox" value="jsallocations" />
+            <div class="perf-settings-feature-name">JS Allocations</div>
+            <div class="perf-settings-feature-title">Track JavaScript allocations (Experimental.)</div>
           </label>
         </div>
       </div>

devtools/client/performance-new/popup/popup.js

@@ -32,6 +32,7 @@ const features = [
   "stackwalk",
   "tasktracer",
   "jstracer",
+  "jsallocations",
   "trackopts",
 ];
 const threadPrefix = "perf-settings-thread-checkbox-";
@@ -257,6 +258,7 @@ function calculateOverhead(state) {
   const overheadFromSeqStyle = state.seqstyle ? 0.05 : 0;
   const overheadFromTaskTracer = state.tasktracer ? 0.05 : 0;
   const overheadFromJSTracer = state.jstracer ? 0.05 : 0;
+  const overheadFromJSAllocations = state.jsallocations ? 0.05 : 0;
   return clamp(
     overheadFromSampling +
       overheadFromBuffersize +
@@ -265,7 +267,8 @@ function calculateOverhead(state) {
       overheadFromJavaScrpt +
       overheadFromSeqStyle +
       overheadFromTaskTracer +
-      overheadFromJSTracer,
+      overheadFromJSTracer +
+      overheadFromJSAllocations,
     0,
     1
   );