[InfoBar] Upstram basic infobar flow for Android.

chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBarView.java

Index: chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBarView.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBarView.java b/chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBarView.java
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index 0000000000000000000000000000000000000000..40c341aa9f15b242193043a2f61b5aad8d90e696
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+++ b/chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBarView.java
@@ -0,0 +1,62 @@
+// Copyright (c) 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.chrome.browser.infobar;
+
+import android.content.Context;
+
+/**
+ * Functions needed to display an InfoBar UI.
+ */
+public interface InfoBarView {
+    /**
+     * Prepare the InfoBar for display and adding InfoBar-specific controls to the layout.
+     * @param layout Layout containing all of the controls.
+     */
+    public void createContent(InfoBarLayout layout);
+
+    /**
+     * Returns the message indicating what the InfoBar is informing or asking the user about.
+     * @param context Context to pull the string from.
+     * @return The string to display.
+     */
+    public CharSequence getMessageText(Context context);
+
+    /**
+     * Returns text to display on the primary button indicating that some action will be taken.
+     * Setting this to null prevents the button from being created.
+     * @param context Context to pull the string from.
+     * @return The string to display.
+     */
+    public String getPrimaryButtonText(Context context);
+
+    /**
+     * Returns text to display on the secondary button, typically indicating that some action will
+     * not be taken.
+     *
+     * Example text includes "Cancel" or "Nope".  Setting this to null prevents the button from
+     * being created.  It is illegal to have a secondary button without a primary button.
+     *
+     * @param context Context to pull the string from.
+     * @return The string to display.
+     */
+    public String getSecondaryButtonText(Context context);
+
+    /**
+     * Take some action related to the close button being clicked.
+     */
+    public void onCloseButtonClicked();
+
+    /**
+     * Performs some action related to either the primary or secondary button being pressed.
+     * @param isPrimaryButton True if the primary button was clicked, false otherwise.
+     */
+    public void onButtonClicked(boolean isPrimaryButton);
+
+    /**
+     * Sets whether or not controls for this View should be clickable.
+     * @param state If set to false, controls cannot be clicked and will be grayed out.
+     */
+    public void setControlsEnabled(boolean state);
+}