[heap] Properly decrement amount of externally allocated memory

mlippautz · mlippautz · commit 206f12abee3f · 2015-08-31T21:11:38.000Z
TBR=mstarzinger@chromium.org BUG=chromium:526244 LOG=N Review URL: https://codereview.chromium.org/1329493002 . Cr-Commit-Position: refs/heads/master@{#30487}
diff --git a/src/heap/heap.cc b/src/heap/heap.cc
@@ -1847,7 +1847,7 @@ void Heap::FreeDeadArrayBuffers(bool from_scavenge) {
   }
 
   // Do not call through the api as this code is triggered while doing a GC.
-  amount_of_external_allocated_memory_ += FreeDeadArrayBuffersHelper(
+  amount_of_external_allocated_memory_ -= FreeDeadArrayBuffersHelper(
       isolate_,
       from_scavenge ? live_array_buffers_for_scavenge_ : live_array_buffers_,
       from_scavenge ? not_yet_discovered_array_buffers_for_scavenge_

Original file line number	Diff line number	Diff line change
`@@ -1847,7 +1847,7 @@ void Heap::FreeDeadArrayBuffers(bool from_scavenge) {`
`1847`	`1847`	`}`
`1848`	`1848`
`1849`	`1849`	`// Do not call through the api as this code is triggered while doing a GC.`
`1850`		`- amount_of_external_allocated_memory_ += FreeDeadArrayBuffersHelper(`
	`1850`	`+ amount_of_external_allocated_memory_ -= FreeDeadArrayBuffersHelper(`
`1851`	`1851`	`isolate_,`
`1852`	`1852`	`from_scavenge ? live_array_buffers_for_scavenge_ : live_array_buffers_,`
`1853`	`1853`	`from_scavenge ? not_yet_discovered_array_buffers_for_scavenge_`