Update MDC Build.gn with AppBar missing files.

Add AppBarNavigationController.h/m files and ColorThemer sub directory
Also added strings needed for AppBarViewController

Bug: 880938
Cq-Include-Trybots: luci.chromium.try:ios-simulator-cronet;luci.chromium.try:ios-simulator-full-configs
Change-Id: I0b93329a2eca0b06b3ae803953b03912d105da57
Reviewed-on: https://chromium-review.googlesource.com/1208440Reviewed-by: Peter Lee <pkl@chromium.org>
Commit-Queue: Mohammad Refaat <mrefaat@chromium.org>
Cr-Commit-Position: refs/heads/master@{#589089}

ios/third_party/material_components_ios/BUILD.gn

@@ -67,12 +67,19 @@ source_set("material_components_ios") {
     "src/components/AnimationTiming/src/MaterialAnimationTiming.h",
     "src/components/AnimationTiming/src/UIView+MDCTimingFunction.h",
     "src/components/AnimationTiming/src/UIView+MDCTimingFunction.m",
+    "src/components/AppBar/src/ColorThemer/MDCAppBarColorThemer.h",
+    "src/components/AppBar/src/ColorThemer/MDCAppBarColorThemer.m",
+    "src/components/AppBar/src/ColorThemer/MaterialAppBar+ColorThemer.h",
     "src/components/AppBar/src/MDCAppBar.h",
     "src/components/AppBar/src/MDCAppBarContainerViewController.h",
     "src/components/AppBar/src/MDCAppBarContainerViewController.m",
+    "src/components/AppBar/src/MDCAppBarNavigationController.h",
+    "src/components/AppBar/src/MDCAppBarNavigationController.m",
     "src/components/AppBar/src/MDCAppBarViewController.h",
     "src/components/AppBar/src/MDCAppBarViewController.m",
     "src/components/AppBar/src/MaterialAppBar.h",
+    "src/components/AppBar/src/private/MaterialAppBarStrings.h",
+    "src/components/AppBar/src/private/MaterialAppBarStrings_table.h",
     "src/components/BottomSheet/src/MDCBottomSheetController.h",
     "src/components/BottomSheet/src/MDCBottomSheetController.m",
     "src/components/BottomSheet/src/MDCBottomSheetPresentationController.h",
@@ -163,6 +170,9 @@ source_set("material_components_ios") {
     "src/components/Dialogs/src/private/MDCDialogShadowedView.m",
     "src/components/Dialogs/src/private/MaterialDialogsStrings.h",
     "src/components/Dialogs/src/private/MaterialDialogsStrings_table.h",
+    "src/components/FlexibleHeader/src/ColorThemer/MDCFlexibleHeaderColorThemer.h",
+    "src/components/FlexibleHeader/src/ColorThemer/MDCFlexibleHeaderColorThemer.m",
+    "src/components/FlexibleHeader/src/ColorThemer/MaterialFlexibleHeader+ColorThemer.h",
     "src/components/FlexibleHeader/src/MDCFlexibleHeaderContainerViewController.h",
     "src/components/FlexibleHeader/src/MDCFlexibleHeaderContainerViewController.m",
     "src/components/FlexibleHeader/src/MDCFlexibleHeaderView.h",
@@ -189,6 +199,9 @@ source_set("material_components_ios") {
     "src/components/Ink/src/private/MDCLegacyInkLayer+Testing.h",
     "src/components/Ink/src/private/MDCLegacyInkLayer.h",
     "src/components/Ink/src/private/MDCLegacyInkLayer.m",
+    "src/components/NavigationBar/src/ColorThemer/MDCNavigationBarColorThemer.h",
+    "src/components/NavigationBar/src/ColorThemer/MDCNavigationBarColorThemer.m",
+    "src/components/NavigationBar/src/ColorThemer/MaterialNavigationBar+ColorThemer.h",
     "src/components/NavigationBar/src/MDCNavigationBar.h",
     "src/components/NavigationBar/src/MDCNavigationBar.m",
     "src/components/NavigationBar/src/MaterialNavigationBar.h",
@@ -309,12 +322,16 @@ source_set("material_components_ios") {
     "src/components/ActivityIndicator/src",
     "src/components/AnimationTiming/src",
     "src/components/AppBar/src",
+    "src/components/AppBar/src/ColorThemer",
     "src/components/BottomSheet/src",
     "src/components/ButtonBar/src",
     "src/components/Buttons/src/ButtonThemer",
     "src/components/Buttons/src/ColorThemer",
     "src/components/Buttons/src/TypographyThemer",
+    "src/components/FlexibleHeader/src",
+    "src/components/FlexibleHeader/src/ColorThemer",
     "src/components/NavigationBar/src",
+    "src/components/NavigationBar/src/ColorThemer",
     "src/components/OverlayWindow/src",
     "src/components/private/Math/src",
     "src/components/private/Application/src",
@@ -376,6 +393,16 @@ source_set("material_components_ios") {
 _locales = [ "en" ]
 
 foreach(locale, _locales) {
+  bundle_data("material_app_bar_bundle_$locale") {
+    visibility = [ ":material_app_bar_bundle" ]
+    sources = [
+      "src/components/AppBar/src/MaterialAppBar.bundle/Resources/$locale.lproj/MaterialAppBar.strings",
+    ]
+    outputs = [
+      "{{bundle_resources_dir}}/MaterialAppBar.bundle/Resources/$locale.lproj/{{source_file_part}}",
+    ]
+  }
+
   bundle_data("material_collections_bundle_$locale") {
     visibility = [ ":material_collections_bundle" ]
     sources = [