Add support for color input datalist on Android

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

+// 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(60, 60));

[newt (away), 2013/08/29 05:35:33]

you're actually respecifying the width and height of the GridView children here,
and using px instead of dp. Instead, remove this setLayoutParams line and change
the previous line to:

    layout = inflater.inflate(R.layout.color_button, parent, false);

that should respect the layout params in the color_button.xml file.

Or you could delete color_button.xml and just use "new View()" here. Then you'll
have to set the layout params manually, and be sure to convert from dp to px.

+        }
+        ColorSuggestion suggestion = getItem(position);
+        LayerDrawable background = (LayerDrawable)layout.getBackground();

[newt (away), 2013/08/29 05:35:33]

space before "layout"

+        GradientDrawable swatch =
+                (GradientDrawable) background.findDrawableByLayerId(R.id.color_button_swatch);

[newt (away), 2013/08/29 05:35:33]

where is color_button_swatch defined?

+        swatch.setColor(suggestion.mColor);
+        String description = suggestion.mLabel;
+        if (description.isEmpty())

[newt (away), 2013/08/29 05:35:33]

need curly braces in Java. also, could description potentially be null?

+            description = String.format("#%06X", (0xFFFFFF & suggestion.mColor));
+        layout.setContentDescription(description);
+        return layout;
+    }
+}