Implement Clipboard::ReadData and Clipboard::WriteData for Mac.

ui/base/clipboard/clipboard_unittest.cc

Index: ui/base/clipboard/clipboard_unittest.cc
diff --git a/ui/base/clipboard/clipboard_unittest.cc b/ui/base/clipboard/clipboard_unittest.cc
index 34483e8719e93ba86c5abad6f9bd3388e0de5107..ecf63f92c4840bda1bd2939eb6313a3c81334b24 100644
--- a/ui/base/clipboard/clipboard_unittest.cc
+++ b/ui/base/clipboard/clipboard_unittest.cc
@@ -8,6 +8,7 @@
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/pickle.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -22,10 +23,6 @@
 #include "ui/base/clipboard/clipboard_util_win.h"
 #endif
 
-#if defined(OS_WIN) || (defined(OS_POSIX) && !defined(OS_MACOSX))
-#include "base/pickle.h"
-#endif
-
 namespace ui {
 
 #if defined(OS_WIN)
@@ -380,7 +377,6 @@ TEST_F(ClipboardTest, MultipleBitmapReadWriteTest) {
 }
 #endif
 
-#if defined(OS_WIN) || (defined(OS_POSIX) && !defined(OS_MACOSX))
 TEST_F(ClipboardTest, DataTest) {
   Clipboard clipboard;
   const char* kFormat = "chromium/x-test-format";
@@ -460,7 +456,6 @@ TEST_F(ClipboardTest, MultipleDataTest) {
   ASSERT_TRUE(read_pickle1.ReadString(&iter1, &unpickled_string1));
   EXPECT_EQ(payload1, unpickled_string1);
 }
-#endif
 
 #if defined(OS_WIN)  // Windows only tests.
 TEST_F(ClipboardTest, HyperlinkTest) {