Add UMA statistics to the clipboard

ui/base/clipboard/clipboard_android.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 "base/android/jni_string.h"
 #include "base/lazy_instance.h"
 #include "base/stl_util.h"
 #include "base/synchronization/lock.h"
@@ skipping 236 matching lines @@
 void Clipboard::ReadText(Clipboard::Buffer buffer, string16* result) const {
   DCHECK_EQ(buffer, BUFFER_STANDARD);
   std::string utf8;
   ReadAsciiText(buffer, &utf8);
   *result = UTF8ToUTF16(utf8);
 }
 
 void Clipboard::ReadAsciiText(Clipboard::Buffer buffer,
                               std::string* result) const {
   DCHECK_EQ(buffer, BUFFER_STANDARD);
+  ReportAction(buffer, READ_TEXT);
   *result = g_map.Get().Get(kPlainTextFormat);
 }
 
 // Note: |src_url| isn't really used. It is only implemented in Windows
 void Clipboard::ReadHTML(Clipboard::Buffer buffer,
                          string16* markup,
                          std::string* src_url,
                          uint32* fragment_start,
                          uint32* fragment_end) const {
   DCHECK_EQ(buffer, BUFFER_STANDARD);
@@ skipping 161 matching lines @@
 }
 
 void Clipboard::WriteSourceTag(SourceTag tag) {
   if (tag != SourceTag()) {
     ObjectMapParam binary = SourceTag2Binary(tag);
     WriteData(GetSourceTagFormatType(), &binary[0], binary.size());
   }
 }
 
 } // namespace ui