Fix input injector on Linux to release all keys before injecting text event.

remoting/host/input_injector_x11.cc

Index: remoting/host/input_injector_x11.cc
diff --git a/remoting/host/input_injector_x11.cc b/remoting/host/input_injector_x11.cc
index 1852e9fabc50ab43f2b8ca516d3e752f3674eb7c..54f416abda7187a5e56445e9cf62ef837bfa5143 100644
--- a/remoting/host/input_injector_x11.cc
+++ b/remoting/host/input_injector_x11.cc
@@ -327,6 +327,15 @@ void InputInjectorX11::Core::InjectTextEvent(const TextEvent& event) {
     return;
   }
 
+  // Release all keys before injecting text event. This is necessary to avoid
+  // any interference with the currently pressed keys. E.g. if Shift is pressed
+  // when TextEvent is received.
+  for (std::set<int>::iterator it = pressed_keys_.begin();

[Lambros, 2014/12/22 23:05:11]

nit: Prefer const_iterator
Could use C++11 here: for (int key : pressed_keys_) ?

[Sergey Ulanov, 2014/12/23 00:13:28]

Done.

+       it != pressed_keys_.end(); ++it) {
+    XTestFakeKeyEvent(display_, *it, False, CurrentTime);
+  }
+  pressed_keys_.clear();
+
   const std::string text = event.text();
   for (int32 index = 0; index < static_cast<int32>(text.size()); ++index) {
     uint32_t code_point;