[Blink] Don't center images in Android WebViews

third_party/WebKit/Source/core/html/ImageDocumentTest.cpp

 // 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 "core/html/ImageDocument.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/DocumentParser.h"
+#include "core/frame/Settings.h"
 #include "core/loader/EmptyClients.h"
 #include "core/testing/DummyPageHolder.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace blink {
 
 namespace {
 
 // An image of size 50x50.
 Vector<unsigned char> jpegImage() {
@@ skipping 156 matching lines @@
 }
 
 TEST_F(ImageDocumentTest, ImageScalesDownWithDsf) {
   createDocumentWithoutLoadingImage(20, 30);
   setWindowToViewportScalingFactor(2.f);
   loadImage();
   EXPECT_EQ(10, imageWidth());
   EXPECT_EQ(10, imageHeight());
 }
 
+TEST_F(ImageDocumentTest, ImageNotCenteredWithForceZeroLayoutHeight) {
+  createDocumentWithoutLoadingImage(80, 70);
+  document().page()->settings().setForceZeroLayoutHeight(true);
+  loadImage();
+  EXPECT_FALSE(document().shouldShrinkToFit());
+  EXPECT_EQ(0, document().imageElement()->offsetLeft());
+  EXPECT_EQ(0, document().imageElement()->offsetTop());
+  EXPECT_EQ(50, imageWidth());
+  EXPECT_EQ(50, imageHeight());
+}
+
+TEST_F(ImageDocumentTest, ImageCenteredWithoutForceZeroLayoutHeight) {
+  createDocumentWithoutLoadingImage(80, 70);
+  document().page()->settings().setForceZeroLayoutHeight(false);
+  loadImage();
+  EXPECT_TRUE(document().shouldShrinkToFit());
+  EXPECT_EQ(15, document().imageElement()->offsetLeft());
+  EXPECT_EQ(10, document().imageElement()->offsetTop());
+  EXPECT_EQ(50, imageWidth());
+  EXPECT_EQ(50, imageHeight());
+}
+
 }  // namespace blink