[TTS] Extract tapped text before showing UI.

chrome/android/java/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchInternalStateHandler.java

Index: chrome/android/java/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchInternalStateHandler.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchInternalStateHandler.java b/chrome/android/java/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchInternalStateHandler.java
new file mode 100644
index 0000000000000000000000000000000000000000..9901c927a7c54252fc53587d481be4c04f942b8c
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchInternalStateHandler.java
@@ -0,0 +1,54 @@
+// Copyright 2017 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.contextualsearch;
+
+import org.chromium.chrome.browser.compositor.bottombar.OverlayPanel.StateChangeReason;
+
+/**
+ * An interface for driving operations in the Contextual Search Manager's internal state by the
+ * {@link ContextualSearchInternalStateController} class.
+ */
+public interface ContextualSearchInternalStateHandler {
+    /**
+     * Hides the Contextual Search user interface.
+     */
+    void hideContextualSearchUi(StateChangeReason reason);
+
+    /**
+     * Shows the Contextual Search user interface for a Tap.
+     */
+    void showContextualSearchTapUi();
+
+    /**
+     * Shows the Contextual Search user interface for a Long-press.
+     */
+    void showContextualSearchLongpressUi();
+
+    /**
+     * Gathers text surrounding the current selection, which may have been created by either a Tap
+     * or a Long-press gesture.
+     */
+    void gatherSurroundingText();
+
+    /**
+     * Starts the process of deciding if we'll suppress the current gesture or not.
+     */
+    void decideSuppression();
+
+    /**
+     * Starts the process of selecting a word around the current caret.
+     */
+    void startShowingTapUi();
+
+    /**
+     * Waits to see if a Tap gesture will be made when a previous Tap was recognized.
+     */
+    void waitForPossibleTapNearPrevious();
+
+    /**
+     * Starts a Resolve request to our server for the best Search Term.
+     */
+    void resolveSearchTerm();
+}