Adds selection expansion support for Contextual Search.

content/browser/web_contents/web_contents_android.h

 // 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.
 
 #ifndef CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_ANDROID_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_ANDROID_H_
 
 #include <jni.h>
 
 #include "base/android/scoped_java_ref.h"
@@ skipping 59 matching lines @@
   void ExitFullscreen(JNIEnv* env, jobject obj);
   void UpdateTopControlsState(
       JNIEnv* env,
       jobject obj,
       bool enable_hiding,
       bool enable_showing,
       bool animate);
   void ShowImeIfNeeded(JNIEnv* env, jobject obj);
   void ScrollFocusedEditableNodeIntoView(JNIEnv* env, jobject obj);
   void SelectWordAroundCaret(JNIEnv* env, jobject obj);
-
+  void ExpandSelectionByCharacterOffset(JNIEnv* env,
+                                        jobject obj,
+                                        jint start_adjust,

[palmer, 2015/07/07 18:39:59]

(Be aware that jsize exists and may be more appropriate if you standardize these
values as size_t in C++.)

+                                        jint end_adjust);
   void InsertCSS(JNIEnv* env, jobject jobj, jstring jcss);
   void EvaluateJavaScript(JNIEnv* env,
                           jobject obj,
                           jstring script,
                           jobject callback);
 
   void AddMessageToDevToolsConsole(JNIEnv* env,
                                    jobject jobj,
                                    jint level,
                                    jstring message);
@@ skipping 13 matching lines @@
   base::android::ScopedJavaGlobalRef<jobject> obj_;
 
   base::WeakPtrFactory<WebContentsAndroid> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsAndroid);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_ANDROID_H_