CL for perf tryjob on mac

third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.cpp

Index: third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.cpp b/third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.cpp
index aac5c704343fc41443e40e17f9897671c8088344..4da48df4245d05635757000986ce313aa7a6c871 100644
--- a/third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.cpp
+++ b/third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.cpp
@@ -850,7 +850,10 @@ void Canvas2DLayerBridge::mailboxReleased(const WebExternalTextureMailbox& mailb
 
 #if USE_IOSURFACE_FOR_2D_CANVAS
         if (!releasedMailboxInfo->m_imageInfo.empty() && !lostResource) {
-            m_imageInfoCache.append(releasedMailboxInfo->m_imageInfo);
+            // IOSurface texures can't be reused, because the compositor returns
+            // them while they are still in use, and the SyncToken isn't
+            // relevant. https://crbug.com/608026.
+            deleteCHROMIUMImage(releasedMailboxInfo->m_imageInfo);
         }
 #endif // USE_IOSURFACE_FOR_2D_CANVAS
     }