Revert "Log to UMA why we would load a third-party frame"

third_party/WebKit/Source/web/tests/DeferredLoadingTest.cpp

Index: third_party/WebKit/Source/web/tests/DeferredLoadingTest.cpp
diff --git a/third_party/WebKit/Source/web/tests/DeferredLoadingTest.cpp b/third_party/WebKit/Source/web/tests/DeferredLoadingTest.cpp
deleted file mode 100644
index b9031afe5badd5ac893611f132a8ee434c0fea4a..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/web/tests/DeferredLoadingTest.cpp
+++ /dev/null
@@ -1,186 +0,0 @@
-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "platform/testing/HistogramTester.h"
-#include "platform/testing/UnitTestHelpers.h"
-#include "web/WebViewImpl.h"
-#include "web/tests/sim/SimCompositor.h"
-#include "web/tests/sim/SimDisplayItemList.h"
-#include "web/tests/sim/SimRequest.h"
-#include "web/tests/sim/SimTest.h"
-
-namespace blink {
-
-static const char* kHistogramName =
-    "Navigation.DeferredDocumentLoading.StatesV2";
-
-class DeferredLoadingTest : public SimTest {
- protected:
-  DeferredLoadingTest() { webView().resize(WebSize(640, 480)); }
-  void compositeFrame() {
-    compositor().beginFrame();
-    testing::runPendingTasks();
-    if (compositor().needsBeginFrame())
-      compositor().beginFrame();  // VisibleNestedInRight doesn't need this.
-    ASSERT_FALSE(compositor().needsBeginFrame());
-  }
-
-  SimRequest createMainResource() {
-    SimRequest mainResource("https://example.com/", "text/html");
-    loadURL("https://example.com/");
-    return mainResource;
-  }
-};
-
-TEST_F(DeferredLoadingTest, Visible) {
-  HistogramTester histogramTester;
-  SimRequest mainResource = createMainResource();
-
-  mainResource.complete("<iframe sandbox></iframe>");
-
-  compositeFrame();
-
-  histogramTester.expectBucketCount(kHistogramName, Created, 1);
-  histogramTester.expectBucketCount(kHistogramName, WouldLoadVisible, 1);
-}
-
-TEST_F(DeferredLoadingTest, Right) {
-  HistogramTester histogramTester;
-  SimRequest mainResource = createMainResource();
-
-  mainResource.complete(
-      "<iframe style='position:absolute; left:105vw;' sandbox></iframe>");
-
-  compositeFrame();
-
-  histogramTester.expectBucketCount(kHistogramName, Created, 1);
-  histogramTester.expectTotalCount(kHistogramName, 1);
-}
-
-TEST_F(DeferredLoadingTest, Below) {
-  HistogramTester histogramTester;
-  SimRequest mainResource = createMainResource();
-
-  mainResource.complete(
-      "<iframe style='position:absolute; top:105vh;' sandbox></iframe>");
-
-  compositeFrame();
-
-  histogramTester.expectBucketCount(kHistogramName, Created, 1);
-  histogramTester.expectTotalCount(kHistogramName, 1);
-}
-
-TEST_F(DeferredLoadingTest, Above) {
-  HistogramTester histogramTester;
-  SimRequest mainResource = createMainResource();
-
-  mainResource.complete(
-      "<iframe style='position:absolute; top:-10000px;' sandbox></iframe>");
-
-  compositeFrame();
-
-  histogramTester.expectBucketCount(kHistogramName, Created, 1);
-  histogramTester.expectBucketCount(kHistogramName, WouldLoadAbove, 1);
-}
-
-TEST_F(DeferredLoadingTest, Left) {
-  HistogramTester histogramTester;
-  SimRequest mainResource = createMainResource();
-
-  mainResource.complete(
-      "<iframe style='position:absolute; left:-10000px;' sandbox></iframe>");
-
-  compositeFrame();
-
-  histogramTester.expectBucketCount(kHistogramName, Created, 1);
-  histogramTester.expectBucketCount(kHistogramName, WouldLoadLeft, 1);
-}
-
-TEST_F(DeferredLoadingTest, AboveAndLeft) {
-  HistogramTester histogramTester;
-  SimRequest mainResource = createMainResource();
-
-  mainResource.complete(
-      "<iframe style='position:absolute; left:-10000px; top:-10000px' sandbox>"
-      "</iframe>");
-
-  compositeFrame();
-
-  // Don't log WouldLoadAbove AND WouldLoadLeft.
-  histogramTester.expectBucketCount(kHistogramName, Created, 1);
-  histogramTester.expectBucketCount(kHistogramName, WouldLoadAbove, 1);
-  histogramTester.expectTotalCount(kHistogramName, 2);
-}
-
-TEST_F(DeferredLoadingTest, ZeroByZero) {
-  HistogramTester histogramTester;
-  SimRequest mainResource = createMainResource();
-
-  mainResource.complete(
-      "<iframe style='height:0px;width:0px;' sandbox></iframe>");
-
-  compositeFrame();
-
-  histogramTester.expectBucketCount(kHistogramName, Created, 1);
-  histogramTester.expectBucketCount(kHistogramName, WouldLoadZeroByZero, 1);
-}
-
-TEST_F(DeferredLoadingTest, DisplayNone) {
-  HistogramTester histogramTester;
-  SimRequest mainResource = createMainResource();
-
-  mainResource.complete("<iframe style='display:none' sandbox></iframe>");
-
-  compositeFrame();
-
-  histogramTester.expectBucketCount(kHistogramName, Created, 1);
-  histogramTester.expectBucketCount(kHistogramName, WouldLoadDisplayNone, 1);
-}
-
-TEST_F(DeferredLoadingTest, VisibleNestedInRight) {
-  HistogramTester histogramTester;
-  SimRequest mainResource = createMainResource();
-  SimRequest frameResource("https://example.com/iframe.html", "text/html");
-
-  mainResource.complete(
-      "<iframe style='position:absolute; left:105vw;' src='iframe.html' "
-      "sandbox></iframe>");
-  frameResource.complete("<iframe sandbox></iframe>");
-
-  compositeFrame();
-
-  histogramTester.expectBucketCount(kHistogramName, Created, 2);
-  histogramTester.expectTotalCount(kHistogramName, 2);
-}
-
-TEST_F(DeferredLoadingTest, LeftNestedInBelow) {
-  HistogramTester histogramTester;
-  SimRequest mainResource = createMainResource();
-  SimRequest frameResource("https://example.com/iframe.html", "text/html");
-
-  mainResource.complete(
-      "<iframe style='position:absolute; top:105vh;' src='iframe.html' "
-      "sandbox></iframe>");
-  frameResource.complete(
-      "<iframe style='position:absolute; left:-10000px;' sandbox></iframe>");
-
-  compositeFrame();
-
-  histogramTester.expectBucketCount(kHistogramName, Created, 2);
-  histogramTester.expectTotalCount(kHistogramName, 2);
-}
-
-TEST_F(DeferredLoadingTest, SameOriginNotCounted) {
-  HistogramTester histogramTester;
-  SimRequest mainResource = createMainResource();
-  SimRequest frameResource("https://example.com/iframe.html", "text/html");
-
-  mainResource.complete("<iframe src='iframe.html'></iframe>");
-  frameResource.complete("<iframe></iframe>");
-  compositeFrame();
-
-  histogramTester.expectTotalCount(kHistogramName, 0);
-}
-
-}  // namespace blink