[Chromoting] Make some logging levels in ClipboardWin more appropriate.

remoting/host/clipboard_win.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/host/clipboard.h"
 
 #include <windows.h>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 142 matching lines @@
           reinterpret_cast<RemoveClipboardFormatListenerFn*>(
               ::GetProcAddress(user32_module, "RemoveClipboardFormatListener"));
       if (!HaveClipboardListenerApi()) {
         LOG(WARNING) << "Couldn't load AddClipboardFormatListener or "
                      << "RemoveClipboardFormatListener.";
       }
     }
   }
 
   if (!RegisterWindowClass()) {
-    LOG(FATAL) << "Couldn't register clipboard window class.";
+    LOG(ERROR) << "Couldn't register clipboard window class.";
     return;
   }
   hwnd_ = ::CreateWindow(kWindowClassName,
                          kWindowName,
                          0, 0, 0, 0, 0,
                          HWND_MESSAGE,
                          NULL,
                          base::GetModuleFromAddress(&WndProc),
                          this);
   if (!hwnd_) {
-    LOG(FATAL) << "Couldn't create clipboard window.";
+    LOG(ERROR) << "Couldn't create clipboard window.";
     return;
   }
 
   if (HaveClipboardListenerApi()) {
     if (!(*add_clipboard_format_listener_)(hwnd_)) {
       LOG(WARNING) << "AddClipboardFormatListener() failed: " << GetLastError();
     }
   }
 }
 
@@ skipping 126 matching lines @@
       return 0;
   }
   return ::DefWindowProc(hwnd, msg, wparam, lparam);
 }
 
 scoped_ptr<Clipboard> Clipboard::Create() {
   return scoped_ptr<Clipboard>(new ClipboardWin());
 }
 
 }  // namespace remoting