First stab at webinputevent_linux.cc. Coverts GDK events to

webkit/glue/webinputevent.h

 // Copyright (c) 2006-2008 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.
 
 #ifndef WEBKIT_GLUE_WEBINPUTEVENT_H_
 #define WEBKIT_GLUE_WEBINPUTEVENT_H_
 
 #include "base/basictypes.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #elif defined(OS_MACOSX)
 #include <wtf/RetainPtr.h>
 #ifdef __OBJC__
 @class NSEvent;
 #else
 class NSEvent;
 #endif  // __OBJC__
-#endif  // OS_MACOSX
+#elif defined(OS_LINUX)
+typedef struct _GdkEventButton GdkEventButton;
+typedef struct _GdkEventMotion GdkEventMotion;
+typedef struct _GdkEventScroll GdkEventScroll;
+typedef struct _GdkEventKey GdkEventKey;
+#endif
 
 // The classes defined in this file are intended to be used with WebView's
 // HandleInputEvent method.  These event types are cross-platform; however,
 // there are platform-specific constructors that accept native UI events.
 //
 // The fields of these event classes roughly correspond to the fields required
 // by WebCore's platform event classes.
 
 // WebInputEvent --------------------------------------------------------------
 
@@ skipping 55 matching lines @@
   int global_x;
   int global_y;
   double timestamp_sec;  // Seconds since epoch.
   int layout_test_click_count;  // Only used during layout tests.
 
   WebMouseEvent() {}
 #if defined(OS_WIN)
   WebMouseEvent(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam);
 #elif defined(OS_MACOSX)
   WebMouseEvent(NSEvent *event);
+#elif defined(OS_LINUX)
+  explicit WebMouseEvent(const GdkEventButton* event);
+  explicit WebMouseEvent(const GdkEventMotion* event);
 #endif
 };
 
 // WebMouseWheelEvent ---------------------------------------------------------
 
 class WebMouseWheelEvent : public WebMouseEvent {
  public:
   int delta_x;
   int delta_y;
 
   WebMouseWheelEvent() {}
 #if defined(OS_WIN)
   WebMouseWheelEvent(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam);
 #elif defined(OS_MACOSX)
   WebMouseWheelEvent(NSEvent *event);
+#elif defined(OS_LINUX)
+  explicit WebMouseWheelEvent(const GdkEventScroll* event);
 #endif
 };
 
 // WebKeyboardEvent -----------------------------------------------------------
 
 class WebKeyboardEvent : public WebInputEvent {
  public:
   int key_code;
 #if defined(OS_WIN)
   bool system_key;  // Set if we receive a SYSKEYDOWN/WM_SYSKEYUP message.
   MSG actual_message; // Set to the current keyboard message.
 #endif
 
   WebKeyboardEvent() 
       : key_code(0)
 #if defined(OS_WIN)
         , system_key(false) {
     memset(&actual_message, 0, sizeof(actual_message));
   }
 #else
   {}
 #endif
 
 #if defined(OS_WIN)
   WebKeyboardEvent(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam);
 #elif defined(OS_MACOSX)
   WebKeyboardEvent(NSEvent *event);
+#elif defined(OS_LINUX)
+  explicit WebKeyboardEvent(const GdkEventKey* event);
 #endif
 };
 
 
 #endif  // WEBKIT_GLUE_WEBINPUTEVENT_H_