DevTools: Switch to using fast stack iterator to collect stacks during timeline recording.

third_party/WebKit/LayoutTests/inspector/tracing/timeline-event-causes.html

Index: third_party/WebKit/LayoutTests/inspector/tracing/timeline-event-causes.html
diff --git a/third_party/WebKit/LayoutTests/inspector/tracing/timeline-event-causes.html b/third_party/WebKit/LayoutTests/inspector/tracing/timeline-event-causes.html
index 129820f7ead0c904c46d53cbaffa057f47c86d06..aa23f5f0857363203e63bae43102a11a28d0b1b9 100644
--- a/third_party/WebKit/LayoutTests/inspector/tracing/timeline-event-causes.html
+++ b/third_party/WebKit/LayoutTests/inspector/tracing/timeline-event-causes.html
@@ -34,7 +34,8 @@ function test()
                 WebInspector.TimelineUIUtils._generateCauses(record.traceEvent(), InspectorTest.timelineModel().target(), null, contentHelper);
                 var causes = contentHelper.element.deepTextContent();
                 InspectorTest.check(causes, "Should generate causes");
-                checkStringContains(causes, "Timer InstalledsetTimeoutFunction @ setTimeoutFunction.js:");
+                checkStringContains(causes, "Timer Installed");
+                checkStringContains(causes, "setTimeoutFunction @ setTimeoutFunction.js:");
                 next();
             }
         },
@@ -60,7 +61,8 @@ function test()
                 WebInspector.TimelineUIUtils._generateCauses(record.traceEvent(), InspectorTest.timelineModel().target(), null, contentHelper);
                 var causes = contentHelper.element.deepTextContent();
                 InspectorTest.check(causes, "Should generate causes");
-                checkStringContains(causes, "Animation Frame RequestedrequestAnimationFrameFunction @ requestAnimationFrameFunction.js:");
+                checkStringContains(causes, "Animation Frame Requested");
+                checkStringContains(causes, "requestAnimationFrameFunction @ requestAnimationFrameFunction.js:");
                 next();
             }
         },
@@ -88,7 +90,8 @@ function test()
                 WebInspector.TimelineUIUtils._generateCauses(record.traceEvent(), InspectorTest.timelineModel().target(), null, contentHelper);
                 var causes = contentHelper.element.deepTextContent();
                 InspectorTest.check(causes, "Should generate causes");
-                checkStringContains(causes, "First InvalidatedstyleRecalcFunction @ styleRecalcFunction.js:");
+                checkStringContains(causes, "First Invalidated");
+                checkStringContains(causes, "styleRecalcFunction @ styleRecalcFunction.js:");
                 next();
             }
         },
@@ -116,8 +119,10 @@ function test()
                 WebInspector.TimelineUIUtils._generateCauses(record.traceEvent(), InspectorTest.timelineModel().target(), null, contentHelper);
                 var causes = contentHelper.element.deepTextContent();
                 InspectorTest.check(causes, "Should generate causes");
-                checkStringContains(causes, "Layout ForcedlayoutFunction @ layoutFunction.js:");
-                checkStringContains(causes, "First Layout InvalidationlayoutFunction @ layoutFunction.js:");
+                checkStringContains(causes, "Layout Forced");
+                checkStringContains(causes, "layoutFunction @ layoutFunction.js:");
+                checkStringContains(causes, "First Layout Invalidation");
+                checkStringContains(causes, "layoutFunction @ layoutFunction.js:");
                 next();
             }
         }