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

ui/base/clipboard/clipboard_mac.mm

Index: ui/base/clipboard/clipboard_mac.mm
diff --git a/ui/base/clipboard/clipboard_mac.mm b/ui/base/clipboard/clipboard_mac.mm
index ebeb90752c08b968382e056d537aecd955976ea1..ba9c74a5e5ec4c3bd55968e6c624715636287ce0 100644
--- a/ui/base/clipboard/clipboard_mac.mm
+++ b/ui/base/clipboard/clipboard_mac.mm
@@ -153,6 +153,17 @@ void Clipboard::WriteBitmap(const char* pixel_data, const char* size_data) {
   }
 }
 
+void Clipboard::WriteData(const char* format_name, size_t format_len,
+                          const char* data_data, size_t data_len) {
+  NSPasteboard* pb = GetPasteboard();
+  NSString* format = [[NSString alloc] initWithBytes:format_name
+                                              length:format_len
+                                            encoding:NSUTF8StringEncoding];
+  [pb addTypes:[NSArray arrayWithObject:format] owner:nil];
+  [pb setData:[NSData dataWithBytes:data_data length:data_len]
+      forType:format];
+}
+
 // Write an extra flavor that signifies WebKit was the last to modify the
 // pasteboard. This flavor has no data.
 void Clipboard::WriteWebSmartPaste() {
@@ -170,7 +181,7 @@ uint64 Clipboard::GetSequenceNumber(Buffer buffer) {
 }
 
 bool Clipboard::IsFormatAvailable(const Clipboard::FormatType& format,
-                                  Clipboard::Buffer buffer) const {
+                                  Buffer buffer) const {
   DCHECK_EQ(buffer, BUFFER_STANDARD);
   NSString* format_ns = base::SysUTF8ToNSString(format);
 
@@ -186,6 +197,17 @@ bool Clipboard::IsFormatAvailable(const Clipboard::FormatType& format,
   return [types containsObject:format_ns];
 }
 
+bool Clipboard::IsFormatAvailableByString(const std::string& format,
+                                          Buffer buffer) const {
+  DCHECK_EQ(buffer, BUFFER_STANDARD);
+  NSString* format_ns = base::SysUTF8ToNSString(format);
+
+  NSPasteboard* pb = GetPasteboard();
+  NSArray* types = [pb types];
+
+  return [types containsObject:format_ns];
+}
+
 void Clipboard::ReadAvailableTypes(Clipboard::Buffer buffer,
                                    std::vector<string16>* types,
                                    bool* contains_filenames) const {
@@ -342,6 +364,13 @@ void Clipboard::ReadFiles(std::vector<FilePath>* files) const {
   }
 }
 
+void Clipboard::ReadData(const std::string& format, std::string* result) const {
+  NSPasteboard* pb = GetPasteboard();
+  NSData* data = [pb dataForType:base::SysUTF8ToNSString(format)];
+  if ([data length])
+    result->assign(static_cast<const char*>([data bytes]), [data length]);
+}
+
 // static
 Clipboard::FormatType Clipboard::GetUrlFormatType() {
   return base::SysNSStringToUTF8(NSURLPboardType);