Add UMA statistics to the clipboard

ui/base/clipboard/clipboard_chromeos.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 "ui/base/clipboard/clipboard.h"
 
 #include <list>
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
@@ skipping 525 matching lines @@
 
   AuraClipboard* clipboard = GetClipboard();
   if (clipboard->IsFormatAvailable(CUSTOM) && clipboard->GetData()) {
     ui::ReadCustomDataTypes(clipboard->GetData()->custom_data_data().c_str(),
         clipboard->GetData()->custom_data_data().size(), types);
   }
 }
 
 void Clipboard::ReadText(Buffer buffer, string16* result) const {
   DCHECK(CalledOnValidThread());
+  ReportAction(buffer, READ_TEXT);
   GetClipboard()->ReadText(result);
 }
 
 void Clipboard::ReadAsciiText(Buffer buffer, std::string* result) const {
   DCHECK(CalledOnValidThread());
+  ReportAction(buffer, READ_ASCII_TEXT);
   GetClipboard()->ReadAsciiText(result);
 }
 
 void Clipboard::ReadHTML(Buffer buffer,
                          string16* markup,
                          std::string* src_url,
                          uint32* fragment_start,
                          uint32* fragment_end) const {
   DCHECK(CalledOnValidThread());
   GetClipboard()->ReadHTML(markup, src_url, fragment_start, fragment_end);
 }
 
 void Clipboard::ReadRTF(Buffer buffer, std::string* result) const {
   DCHECK(CalledOnValidThread());
+  ReportAction(buffer, READ_RTF);
   GetClipboard()->ReadRTF(result);
 }
 
 SkBitmap Clipboard::ReadImage(Buffer buffer) const {
   DCHECK(CalledOnValidThread());
   return GetClipboard()->ReadImage();
 }
 
 void Clipboard::ReadCustomData(Buffer buffer,
                                const string16& type,
@@ skipping 133 matching lines @@
   return type;
 }
 
 // static
 const Clipboard::FormatType& Clipboard::GetPepperCustomDataFormatType() {
   CR_DEFINE_STATIC_LOCAL(FormatType, type, (kMimeTypePepperCustomData));
   return type;
 }
 
 }  // namespace ui