CL for perf tryjob on linux

third_party/WebKit/Source/platform/heap/ThreadState.cpp

Index: third_party/WebKit/Source/platform/heap/ThreadState.cpp
diff --git a/third_party/WebKit/Source/platform/heap/ThreadState.cpp b/third_party/WebKit/Source/platform/heap/ThreadState.cpp
index 360938dc66080320085f0e3bb87ab25ab82713f2..1345ef47290de62c0a38830129f8490a1c712f14 100644
--- a/third_party/WebKit/Source/platform/heap/ThreadState.cpp
+++ b/third_party/WebKit/Source/platform/heap/ThreadState.cpp
@@ -570,8 +570,10 @@ bool ThreadState::shouldScheduleV8FollowupGC()
 
 bool ThreadState::shouldSchedulePageNavigationGC(float estimatedRemovalRatio)
 {
-    // TODO(keishi): Temporarily disabled to observe impact. crbug.com/588029
-    return false;
+    // If estimatedRemovalRatio is low we should let IdleGC handle this.
+    if (estimatedRemovalRatio < 0.01)
+        return false;
+    return judgeGCThreshold(32 * 1024 * 1024, 1.5 * (1 - estimatedRemovalRatio));
 }
 
 bool ThreadState::shouldForceConservativeGC()
@@ -668,7 +670,6 @@ void ThreadState::schedulePageNavigationGCIfNeeded(float estimatedRemovalRatio)
         dataLogF("Scheduled PageNavigationGC\n");
 #endif
         schedulePageNavigationGC();
-        return;
     }
 }