Add mouse event support to Chromoting client (Pepper and X11).

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 96e81495d6cf2b045eb2d781560bdb56d4ce7f5a..40f299eaeae8ae0571b6a7801c6cc9dd761bf4b4 100644
--- a/remoting/client/plugin/pepper_input_handler.cc
+++ b/remoting/client/plugin/pepper_input_handler.cc
@@ -16,7 +16,27 @@ PepperInputHandler::~PepperInputHandler() {
 }
 
 void PepperInputHandler::Initialize() {
-  // TODO(garykac): Implement this.
+}
+
+void PepperInputHandler::HandleMouseMoveEvent(const PP_Event_Mouse& event) {
+  SendMouseMoveEvent(static_cast<int>(event.x),
+                     static_cast<int>(event.y));
+}
+
+void PepperInputHandler::HandleMouseButtonEvent(bool button_down,
+                                                const PP_Event_Mouse& event) {
+  MouseButton button = MouseButtonUndefined;
+  if (event.button == PP_EVENT_MOUSEBUTTON_LEFT) {
+    button = MouseButtonLeft;
+  } else if (event.button == PP_EVENT_MOUSEBUTTON_MIDDLE) {
+    button = MouseButtonMiddle;
+  } else if (event.button == PP_EVENT_MOUSEBUTTON_RIGHT) {
+    button = MouseButtonRight;
+  }
+
+  if (button != MouseButtonUndefined) {
+    SendMouseButtonEvent(button_down, button);
+  }
 }
 
 }  // namespace remoting