Add most missing blink files to .gn files

third_party/WebKit/Source/core/layout/BUILD.gn

 # 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.
 
 import("//third_party/WebKit/Source/core/core.gni")
 
 blink_core_sources("layout") {
   split_count = 5
 
   sources = [
+    "BackgroundBleedAvoidance.h",
     "BidiRun.h",
     "BidiRunForLine.cpp",
     "BidiRunForLine.h",
     "ColumnBalancer.cpp",
     "ColumnBalancer.h",
+    "ContentChangeType.h",
     "CounterNode.cpp",
     "CounterNode.h",
     "DepthOrderedLayoutObjectList.cpp",
     "DepthOrderedLayoutObjectList.h",
     "FlexibleBoxAlgorithm.cpp",
     "FlexibleBoxAlgorithm.h",
     "FloatingObjects.cpp",
     "FloatingObjects.h",
     "FragmentainerIterator.cpp",
     "FragmentainerIterator.h",
     "FragmentationContext.h",
+    "GapRects.h",
     "GeneratedChildren.h",
     "Grid.cpp",
     "Grid.h",
     "GridTrackSizingAlgorithm.cpp",
     "GridTrackSizingAlgorithm.h",
     "HitTestCache.cpp",
     "HitTestCache.h",
     "HitTestCanvasResult.cpp",
     "HitTestCanvasResult.h",
     "HitTestLocation.cpp",
     "HitTestLocation.h",
+    "HitTestRequest.h",
     "HitTestResult.cpp",
     "HitTestingTransformState.cpp",
     "HitTestingTransformState.h",
     "ImageQualityController.cpp",
     "ImageQualityController.h",
     "IntersectionGeometry.cpp",
     "IntersectionGeometry.h",
     "LayoutAnalyzer.cpp",
     "LayoutAnalyzer.h",
     "LayoutBR.cpp",
@@ skipping 57 matching lines @@
     "LayoutMenuList.h",
     "LayoutMultiColumnFlowThread.cpp",
     "LayoutMultiColumnFlowThread.h",
     "LayoutMultiColumnSet.cpp",
     "LayoutMultiColumnSet.h",
     "LayoutMultiColumnSpannerPlaceholder.cpp",
     "LayoutMultiColumnSpannerPlaceholder.h",
     "LayoutObject.cpp",
     "LayoutObjectChildList.cpp",
     "LayoutObjectChildList.h",
+    "LayoutObjectInlines.h",
     "LayoutPagedFlowThread.cpp",
     "LayoutPagedFlowThread.h",
     "LayoutPart.cpp",
     "LayoutPart.h",
     "LayoutProgress.cpp",
     "LayoutProgress.h",
     "LayoutQuote.cpp",
     "LayoutQuote.h",
     "LayoutReplaced.cpp",
     "LayoutReplaced.h",
@@ skipping 62 matching lines @@
     "LayoutVTTCue.cpp",
     "LayoutVTTCue.h",
     "LayoutVideo.cpp",
     "LayoutVideo.h",
     "LayoutView.cpp",
     "LayoutView.h",
     "LayoutWordBreak.cpp",
     "LayoutWordBreak.h",
     "ListMarkerText.cpp",
     "ListMarkerText.h",
+    "MapCoordinatesFlags.h",
     "MultiColumnFragmentainerGroup.cpp",
     "MultiColumnFragmentainerGroup.h",
     "OrderIterator.cpp",
     "OrderIterator.h",
     "OverflowModel.h",
     "PaintInvalidationState.cpp",
     "PaintInvalidationState.h",
     "PointerEventsHitRules.cpp",
     "PointerEventsHitRules.h",
     "ScrollAlignment.cpp",
@@ skipping 47 matching lines @@
     "api/LineLayoutRubyText.h",
     "api/LineLayoutSVGInline.h",
     "api/LineLayoutSVGInlineText.h",
     "api/LineLayoutSVGTextPath.h",
     "api/LineLayoutText.h",
     "api/LineLayoutTextCombine.h",
     "api/SelectionState.cpp",
     "api/SelectionState.h",
     "compositing/CompositedLayerMapping.cpp",
     "compositing/CompositedLayerMapping.h",
+    "compositing/CompositedSelection.h",
+    "compositing/CompositedSelectionBound.h",
     "compositing/CompositingInputsUpdater.cpp",
     "compositing/CompositingInputsUpdater.h",
     "compositing/CompositingLayerAssigner.cpp",
     "compositing/CompositingLayerAssigner.h",
     "compositing/CompositingReasonFinder.cpp",
     "compositing/CompositingReasonFinder.h",
     "compositing/CompositingRequirementsUpdater.cpp",
     "compositing/CompositingRequirementsUpdater.h",
     "compositing/CompositingState.h",
     "compositing/CompositingTriggers.h",
     "compositing/GraphicsLayerTreeBuilder.cpp",
     "compositing/GraphicsLayerTreeBuilder.h",
     "compositing/GraphicsLayerUpdater.cpp",
     "compositing/GraphicsLayerUpdater.h",
     "compositing/PaintLayerCompositor.cpp",
     "compositing/PaintLayerCompositor.h",
     "line/AbstractInlineTextBox.cpp",
     "line/AbstractInlineTextBox.h",
     "line/BreakingContext.cpp",
+    "line/BreakingContextInlineHeaders.h",
     "line/EllipsisBox.cpp",
     "line/EllipsisBox.h",
     "line/GlyphOverflow.h",
     "line/InlineBox.cpp",
     "line/InlineFlowBox.cpp",
     "line/InlineIterator.h",
     "line/InlineTextBox.cpp",
+    "line/LayoutTextInfo.h",
     "line/LineBoxList.cpp",
     "line/LineBoxList.h",
     "line/LineBreaker.cpp",
     "line/LineBreaker.h",
+    "line/LineInfo.h",
+    "line/LineLayoutState.h",
     "line/LineWidth.cpp",
     "line/LineWidth.h",
     "line/RootInlineBox.cpp",
     "line/TrailingObjects.cpp",
     "line/TrailingObjects.h",
+    "line/WordMeasurement.h",
     "ng/geometry/ng_box_strut.cc",
     "ng/geometry/ng_box_strut.h",
     "ng/geometry/ng_edge.h",
     "ng/geometry/ng_logical_offset.cc",
     "ng/geometry/ng_logical_offset.h",
     "ng/geometry/ng_logical_rect.cc",
     "ng/geometry/ng_logical_rect.h",
     "ng/geometry/ng_logical_size.cc",
     "ng/geometry/ng_logical_size.h",
     "ng/geometry/ng_margin_strut.cc",
@@ skipping 127 matching lines @@
       "LayoutThemeAndroid.cpp",
       "LayoutThemeAndroid.h",
     ]
   }
 
   configs += [
     # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
     "//build/config/compiler:no_size_t_to_int_warning",
   ]
 }