Fixed Android text selection by redefining |button| value.

content/browser/renderer_host/render_widget_host_view_android.cc

 // Copyright (c) 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.
 
 #include "content/browser/renderer_host/render_widget_host_view_android.h"
 
 #include <android/bitmap.h>
 
 #include <utility>
 
@@ skipping 1579 matching lines @@
   if (host_->delegate())
     target_host = host_->delegate()->GetFocusedRenderWidgetHost(host_);
   if (!target_host)
     return;
 
   target_host->ForwardKeyboardEvent(event);
 }
 
 void RenderWidgetHostViewAndroid::SendMouseEvent(
     const ui::MotionEventAndroid& motion_event,
-    int changed_button) {
+    int action_button) {
   blink::WebInputEvent::Type webMouseEventType =
       ui::ToWebMouseEventType(motion_event.GetAction());
 
   blink::WebMouseEvent mouse_event = WebMouseEventBuilder::Build(
       webMouseEventType,
       ui::EventTimeStampToSeconds(motion_event.GetEventTime()),
       motion_event.GetX(0),
       motion_event.GetY(0),
       motion_event.GetFlags(),
       motion_event.GetButtonState() ? 1 : 0 /* click count */,
       motion_event.GetPointerId(0),
       motion_event.GetPressure(0),
       motion_event.GetOrientation(0),
       motion_event.GetTilt(0),
-      changed_button,
+      action_button,
       motion_event.GetToolType(0));
 
   if (host_)
     host_->ForwardMouseEvent(mouse_event);
 }
 
 void RenderWidgetHostViewAndroid::SendMouseWheelEvent(
     const blink::WebMouseWheelEvent& event) {
   if (host_) {
     ui::LatencyInfo latency_info(ui::SourceEventType::WHEEL);
@@ skipping 348 matching lines @@
   ui::WindowAndroidCompositor* compositor = window_android->GetCompositor();
   if (!compositor)
     return;
 
   overscroll_controller_ = base::MakeUnique<OverscrollControllerAndroid>(
       overscroll_refresh_handler, compositor,
       ui::GetScaleFactorForNativeView(GetNativeView()));
 }
 
 }  // namespace content