Refactor chrome's action mode logics and namings

chrome/android/java/src/org/chromium/chrome/browser/CustomSelectionActionModeCallback.java

Index: chrome/android/java/src/org/chromium/chrome/browser/CustomSelectionActionModeCallback.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/CustomSelectionActionModeCallback.java b/chrome/android/java/src/org/chromium/chrome/browser/CustomSelectionActionModeCallback.java
deleted file mode 100644
index f226cd59823b8ddb6d0b20274db46dcf14e24537..0000000000000000000000000000000000000000
--- a/chrome/android/java/src/org/chromium/chrome/browser/CustomSelectionActionModeCallback.java
+++ /dev/null
@@ -1,110 +0,0 @@
-// Copyright 2015 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;
-
-import android.view.ActionMode;
-import android.view.Menu;
-import android.view.MenuItem;
-
-import java.lang.reflect.Field;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-
-/**
- * A class that represents a custom ActionMode.Callback.
- */
-public class CustomSelectionActionModeCallback implements ActionMode.Callback {
-
-    private static boolean sInitializedTypeMethods;
-    private static Method sGetTypeMethod;
-    private static int sTypeFloating;
-
-    private ContextualMenuBar mContextualMenuBar;
-
-    /**
-     * Sets the @param contextualMenuBar.
-     */
-    public void setContextualMenuBar(ContextualMenuBar contextualMenuBar) {
-        mContextualMenuBar = contextualMenuBar;
-    }
-
-    @Override
-    public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
-        return true;
-    }
-
-    @Override
-    public void onDestroyActionMode(ActionMode mode) {
-        if (isFloatingActionMode(mode)) return;
-        mContextualMenuBar.hideControls();
-    }
-
-    @Override
-    public boolean onCreateActionMode(ActionMode mode, Menu menu) {
-        if (isFloatingActionMode(mode)) return true;
-        mContextualMenuBar.showControls();
-        return true;
-    }
-
-    @Override
-    public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
-        return false;
-    }
-
-    // TODO(tedchoc): Delete this method and replace with just getType() when a public M SDK is
-    //                available.
-    private static boolean isFloatingActionMode(ActionMode mode) {
-        initializeGetTypeMethods();
-
-        if (sGetTypeMethod == null) return false;
-
-        Object retVal = null;
-        try {
-            retVal = sGetTypeMethod.invoke(mode);
-        } catch (IllegalAccessException e) {
-            return false;
-        } catch (IllegalArgumentException e) {
-            return false;
-        } catch (InvocationTargetException e) {
-            return false;
-        }
-        if (!(retVal instanceof Integer)) return false;
-
-        return ((Integer) retVal).intValue() == sTypeFloating;
-    }
-
-    private static void initializeGetTypeMethods() {
-        if (sInitializedTypeMethods) return;
-        sInitializedTypeMethods = true;
-
-        Method getType = null;
-        int typeFloating = -1;
-        try {
-            getType = ActionMode.class.getMethod("getType");
-        } catch (NoSuchMethodException e) {
-            return;
-        }
-
-        try {
-            Field field = ActionMode.class.getField("TYPE_FLOATING");
-            Object value = field.get(null);
-
-            if (value instanceof Integer) {
-                typeFloating = (Integer) value;
-            } else {
-                return;
-            }
-        } catch (NoSuchFieldException e) {
-            return;
-        } catch (IllegalAccessException e) {
-            return;
-        } catch (IllegalArgumentException e) {
-            return;
-        }
-
-        sGetTypeMethod = getType;
-        sTypeFloating = typeFloating;
-    }
-}