Release all keys on blur.

remoting/client/plugin/pepper_input_handler.cc

Index: remoting/client/plugin/pepper_input_handler.cc
diff --git a/remoting/client/plugin/pepper_input_handler.cc b/remoting/client/plugin/pepper_input_handler.cc
index 452668e58231e2ba261bbc11c4e81583a77efc16..cdc21b0f8d83ff2825f20771a5a194da4041ee83 100644
--- a/remoting/client/plugin/pepper_input_handler.cc
+++ b/remoting/client/plugin/pepper_input_handler.cc
@@ -27,6 +27,11 @@ void PepperInputHandler::Initialize() {
 
 void PepperInputHandler::HandleKeyEvent(bool keydown,
                                         const PP_InputEvent_Key& event) {
+  if (keydown) {
+    pressed_keys_.insert(event.key_code);
+  } else {
+    pressed_keys_.erase(event.key_code);
+  }
   SendKeyEvent(keydown, event.key_code);
 }
 
@@ -61,4 +66,12 @@ void PepperInputHandler::HandleMouseButtonEvent(
   }
 }
 
+void PepperInputHandler::ReleaseAllKeys() {
+  std::set<int>::iterator i;
+  for (i = pressed_keys_.begin(); i != pressed_keys_.end(); ++i) {
+    SendKeyEvent(false, *i);
+  }
+  pressed_keys_.clear();
+}
+
 }  // namespace remoting