Add most missing blink files to .gn files

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

Index: third_party/WebKit/Source/core/layout/BUILD.gn
diff --git a/third_party/WebKit/Source/core/layout/BUILD.gn b/third_party/WebKit/Source/core/layout/BUILD.gn
index b6075fce02bb8b39ce980933a25c1c810845147b..1984af5be9529bf05f49549f3bb107be4d9bc349 100644
--- a/third_party/WebKit/Source/core/layout/BUILD.gn
+++ b/third_party/WebKit/Source/core/layout/BUILD.gn
@@ -8,11 +8,13 @@ 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",
@@ -24,6 +26,7 @@ blink_core_sources("layout") {
     "FragmentainerIterator.cpp",
     "FragmentainerIterator.h",
     "FragmentationContext.h",
+    "GapRects.h",
     "GeneratedChildren.h",
     "Grid.cpp",
     "Grid.h",
@@ -35,6 +38,7 @@ blink_core_sources("layout") {
     "HitTestCanvasResult.h",
     "HitTestLocation.cpp",
     "HitTestLocation.h",
+    "HitTestRequest.h",
     "HitTestResult.cpp",
     "HitTestingTransformState.cpp",
     "HitTestingTransformState.h",
@@ -112,6 +116,7 @@ blink_core_sources("layout") {
     "LayoutObject.cpp",
     "LayoutObjectChildList.cpp",
     "LayoutObjectChildList.h",
+    "LayoutObjectInlines.h",
     "LayoutPagedFlowThread.cpp",
     "LayoutPagedFlowThread.h",
     "LayoutPart.cpp",
@@ -194,6 +199,7 @@ blink_core_sources("layout") {
     "LayoutWordBreak.h",
     "ListMarkerText.cpp",
     "ListMarkerText.h",
+    "MapCoordinatesFlags.h",
     "MultiColumnFragmentainerGroup.cpp",
     "MultiColumnFragmentainerGroup.h",
     "OrderIterator.cpp",
@@ -261,6 +267,8 @@ blink_core_sources("layout") {
     "api/SelectionState.h",
     "compositing/CompositedLayerMapping.cpp",
     "compositing/CompositedLayerMapping.h",
+    "compositing/CompositedSelection.h",
+    "compositing/CompositedSelectionBound.h",
     "compositing/CompositingInputsUpdater.cpp",
     "compositing/CompositingInputsUpdater.h",
     "compositing/CompositingLayerAssigner.cpp",
@@ -280,6 +288,7 @@ blink_core_sources("layout") {
     "line/AbstractInlineTextBox.cpp",
     "line/AbstractInlineTextBox.h",
     "line/BreakingContext.cpp",
+    "line/BreakingContextInlineHeaders.h",
     "line/EllipsisBox.cpp",
     "line/EllipsisBox.h",
     "line/GlyphOverflow.h",
@@ -287,15 +296,19 @@ blink_core_sources("layout") {
     "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",