libcef:

- Add CefReadHandler and CefWriteHandler classes for creating streams handled by the client.

cefclient:
- Add a CefReadHandler test.
- Move tests out of cefclient.cpp and into separate implementation files.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@39 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

include/cef_capi.h

@@ -600,6 +600,30 @@ typedef struct _cef_post_data_element_t
 CEF_EXPORT cef_post_data_element_t* cef_post_data_element_create();
 
 
+// Structure the client can implement to provide a custom stream reader.
+typedef struct _cef_read_handler_t
+{
+  // Base structure.
+  cef_base_t base;
+
+  // Read raw binary data.
+  size_t (CEF_CALLBACK *read)(struct _cef_read_handler_t* self, void* ptr,
+      size_t size, size_t n);
+
+  // Seek to the specified offset position. |whence| may be any one of SEEK_CUR,
+  // SEEK_END or SEEK_SET.
+  int (CEF_CALLBACK *seek)(struct _cef_read_handler_t* self, long offset,
+      int whence);
+
+  // Return the current offset position.
+  long (CEF_CALLBACK *tell)(struct _cef_read_handler_t* self);
+
+  // Return non-zero if at end of file.
+  int (CEF_CALLBACK *eof)(struct _cef_read_handler_t* self);
+
+} cef_read_handler_t;
+
+
 // Structure used to read data from a stream.
 typedef struct _cef_stream_reader_t
 {
@@ -629,6 +653,32 @@ CEF_EXPORT cef_stream_reader_t* cef_stream_reader_create_for_file(
     const wchar_t* fileName);
 CEF_EXPORT cef_stream_reader_t* cef_stream_reader_create_for_data(void* data,
     size_t size);
+CEF_EXPORT cef_stream_reader_t* cef_stream_reader_create_for_handler(
+    cef_read_handler_t* handler);
+
+
+// Structure the client can implement to provide a custom stream writer.
+typedef struct _cef_write_handler_t
+{
+  // Base structure.
+  cef_base_t base;
+
+  // Write raw binary data.
+  size_t (CEF_CALLBACK *write)(struct _cef_write_handler_t* self,
+      const void* ptr, size_t size, size_t n);
+
+  // Seek to the specified offset position. |whence| may be any one of SEEK_CUR,
+  // SEEK_END or SEEK_SET.
+  int (CEF_CALLBACK *seek)(struct _cef_write_handler_t* self, long offset,
+      int whence);
+
+  // Return the current offset position.
+  long (CEF_CALLBACK *tell)(struct _cef_write_handler_t* self);
+
+  // Flush the stream.
+  int (CEF_CALLBACK *flush)(struct _cef_write_handler_t* self);
+
+} cef_write_handler_t;
 
 
 // Structure used to write data to a stream.
@@ -655,6 +705,13 @@ typedef struct _cef_stream_writer_t
 } cef_stream_writer_t;
 
 
+// Create a new cef_stream_writer_t object.
+CEF_EXPORT cef_stream_writer_t* cef_stream_writer_create_for_file(
+    const wchar_t* fileName);
+CEF_EXPORT cef_stream_writer_t* cef_stream_writer_create_for_handler(
+    cef_write_handler_t* handler);
+
+
 // Structure that should be implemented to handle V8 function calls.
 typedef struct _cef_v8handler_t
 {