Add support for datalist to input type color

ui/android/java/src/org/chromium/ui/ColorGridAdapter.java

Index: ui/android/java/src/org/chromium/ui/ColorGridAdapter.java
diff --git a/ui/android/java/src/org/chromium/ui/ColorGridAdapter.java b/ui/android/java/src/org/chromium/ui/ColorGridAdapter.java
new file mode 100644
index 0000000000000000000000000000000000000000..aabf629a5f872336d0545102402048199b19597f
--- /dev/null
+++ b/ui/android/java/src/org/chromium/ui/ColorGridAdapter.java
@@ -0,0 +1,47 @@
+// Copyright 2013 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.
+
+package org.chromium.ui;
+
+import android.content.Context;
+import android.graphics.drawable.GradientDrawable;
+import android.graphics.drawable.LayerDrawable;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.GridView;
+
+import java.util.ArrayList;
+
+public class ColorGridAdapter extends ArrayAdapter<ColorSuggestion> {
+    private Context mContext;
+
+    ColorGridAdapter(Context context, ArrayList<ColorSuggestion> suggestions) {
+        super(context, R.layout.color_button, suggestions);
+        mContext = context;
+    }
+
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+        View layout = convertView;
+        if (convertView == null) {
+            LayoutInflater inflater =
+                    (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+            layout = inflater.inflate(R.layout.color_button, null);
+            layout.setLayoutParams(
+                    new GridView.LayoutParams(GridView.LayoutParams.WRAP_CONTENT, 65));
+        }
+        ColorSuggestion suggestion = getItem(position);
+        LayerDrawable background = (LayerDrawable)layout.getBackground();
+        GradientDrawable swatch =
+                (GradientDrawable) background.findDrawableByLayerId(R.id.color_button_swatch);
+        swatch.setColor(suggestion.mColor);
+        String description = suggestion.mLabel;
+        if (description.isEmpty())
+            description = String.format("#%06X", (0xFFFFFF & suggestion.mColor));
+        layout.setContentDescription(description);
+        return layout;
+    }
+}