Disable stuck key detection on ChromeOS.

remoting/client/plugin/pepper_input_handler.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 "remoting/client/plugin/pepper_input_handler.h"
 
 #include "base/logging.h"
 #include "ppapi/cpp/image_data.h"
 #include "ppapi/cpp/input_event.h"
 #include "ppapi/cpp/module_impl.h"
@@ skipping 100 matching lines @@
 PepperInputHandler::PepperInputHandler(
     protocol::InputEventTracker* input_tracker)
     : input_stub_(nullptr),
       input_tracker_(input_tracker),
       has_focus_(false),
       send_mouse_input_when_unfocused_(false),
       send_mouse_move_deltas_(false),
       wheel_delta_x_(0),
       wheel_delta_y_(0),
       wheel_ticks_x_(0),
-      wheel_ticks_y_(0) {
+      wheel_ticks_y_(0),
+      detect_stuck_modifiers_(false) {
 }
 
 bool PepperInputHandler::HandleInputEvent(const pp::InputEvent& event) {
-  ReleaseAllIfModifiersStuck(event);
+  if (detect_stuck_modifiers_)
+    ReleaseAllIfModifiersStuck(event);
 
   switch (event.GetType()) {
     // Touch input cases.
     case PP_INPUTEVENT_TYPE_TOUCHSTART:
     case PP_INPUTEVENT_TYPE_TOUCHMOVE:
     case PP_INPUTEVENT_TYPE_TOUCHEND:
     case PP_INPUTEVENT_TYPE_TOUCHCANCEL: {
       if (!input_stub_)
         return true;
       pp::TouchInputEvent pp_touch_event(event);
@@ skipping 148 matching lines @@
       input_tracker_->ReleaseAllIfModifiersStuck(
           (modifiers & PP_INPUTEVENT_MODIFIER_ALTKEY) != 0,
           (modifiers & PP_INPUTEVENT_MODIFIER_CONTROLKEY) != 0,
           (modifiers & PP_INPUTEVENT_MODIFIER_METAKEY) != 0,
           (modifiers & PP_INPUTEVENT_MODIFIER_SHIFTKEY) != 0);
     }
   }
 }
 
 }  // namespace remoting