[Android] Select text when stylus first button is pressed.

content/browser/android/content_view_core_impl.h

 // Copyright 2012 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_ANDROID_CONTENT_VIEW_CORE_IMPL_H_
 #define CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_
 
 #include <vector>
 
 #include "base/android/jni_android.h"
@@ skipping 302 matching lines @@
   // Returns True if the given media should be blocked to load.
   bool ShouldBlockMediaRequest(const GURL& url);
 
   void DidStopFlinging();
 
   // Returns the viewport size after accounting for the viewport offset.
   gfx::Size GetViewSize() const;
 
   void SetAccessibilityEnabledInternal(bool enabled);
 
+  void ShowSelectionHandlesAutomatically() const;
+
   // --------------------------------------------------------------------------
   // Methods called from native code
   // --------------------------------------------------------------------------
 
   gfx::Size GetPhysicalBackingSize() const;
   gfx::Size GetViewportSizeDip() const;
   gfx::Size GetViewportSizeOffsetDip() const;
   float GetOverdrawBottomHeightDip() const;
 
   void AttachLayer(scoped_refptr<cc::Layer> layer);
@@ skipping 69 matching lines @@
       java_bridge_dispatcher_host_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentViewCoreImpl);
 };
 
 bool RegisterContentViewCore(JNIEnv* env);
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_