Fixed Android text selection by redefining |button| value.

content/browser/renderer_host/render_widget_host_view_android.cc

Index: content/browser/renderer_host/render_widget_host_view_android.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_android.cc b/content/browser/renderer_host/render_widget_host_view_android.cc
index 02d54e80dd4ee6e0859437b3074fea776cf05db5..ef59ee5e68e4b9719ecae2560ef9bc87dce3c245 100644
--- a/content/browser/renderer_host/render_widget_host_view_android.cc
+++ b/content/browser/renderer_host/render_widget_host_view_android.cc
@@ -1597,7 +1597,7 @@ void RenderWidgetHostViewAndroid::SendKeyEvent(
 
 void RenderWidgetHostViewAndroid::SendMouseEvent(
     const ui::MotionEventAndroid& motion_event,
-    int changed_button) {
+    int action_button) {
   blink::WebInputEvent::Type webMouseEventType =
       ui::ToWebMouseEventType(motion_event.GetAction());
 
@@ -1612,7 +1612,7 @@ void RenderWidgetHostViewAndroid::SendMouseEvent(
       motion_event.GetPressure(0),
       motion_event.GetOrientation(0),
       motion_event.GetTilt(0),
-      changed_button,
+      action_button,
       motion_event.GetToolType(0));
 
   if (host_)