[Custom Tabs] Implement Bottombar

chrome/android/java/res/values/colors.xml

Index: chrome/android/java/res/values/colors.xml
diff --git a/chrome/android/java/res/values/colors.xml b/chrome/android/java/res/values/colors.xml
index 5e73d84bd64f9ede83603ae1b5a9cbcc0b9cd4a5..94bae5457f12e9e4abc27d591335306b118dfcf6 100644
--- a/chrome/android/java/res/values/colors.xml
+++ b/chrome/android/java/res/values/colors.xml
@@ -14,6 +14,7 @@
     <color name="explanation_text_color">#909090</color>
     <color name="text_highlight_color">#C6DAFC</color>
     <color name="dark_action_bar_color">#263238</color>
+    <color name="toolbar_shadow_color">#1D000000</color>
 
     <!-- Infobar colors -->
     <color name="infobar_accent_blue">#4285f4</color>
@@ -146,7 +147,6 @@
     <!-- Enhanced bookmark UI colors -->
     <color name="enhanced_bookmark_detail_text">#212121</color>
     <color name="enhanced_bookmark_detail_section">#7C7B79</color>
-    <color name="enhanced_bookmark_app_bar_shadow_color">#1D000000</color>
     <color name="enhanced_bookmark_drawer_selected_background_color">#F0F0F0</color>
     <color name="enhanced_bookmark_list_item_highlight_color">#804281f4</color>
     <color name="enhanced_bookmark_icon_background_color">#ff787878</color>