Add truncate and cancel for FileWriter; write and tests will come in later CL...

webkit/glue/plugins/pepper_file_system.cc

 // Copyright (c) 2010 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 "webkit/glue/plugins/pepper_file_system.h"
 
 #include "base/logging.h"
 #include "base/ref_counted.h"
 #include "base/weak_ptr.h"
 #include "third_party/ppapi/c/dev/ppb_file_system_dev.h"
@@ skipping 36 matching lines @@
   }
 
   virtual void DidOpenFileSystem(const std::string&, const FilePath&) {
     NOTREACHED();
   }
 
   virtual void DidFail(base::PlatformFileError error_code) {
     RunCallback(error_code);
   }
 
+  virtual void DidWrite(int64 bytes, bool complete) {
+    NOTREACHED();
+  }
+
  private:
   void RunCallback(base::PlatformFileError error_code) {
     if (!module_.get() || !callback_.func)
       return;
 
     PP_RunCompletionCallback(
         &callback_, pepper::PlatformFileErrorToPepperError(error_code));
 
     delete this;
   }
@@ skipping 31 matching lines @@
   }
 
   virtual void DidOpenFileSystem(const std::string&, const FilePath&) {
     NOTREACHED();
   }
 
   virtual void DidFail(base::PlatformFileError error_code) {
     RunCallback(error_code, base::PlatformFileInfo());
   }
 
+  virtual void DidWrite(int64 bytes, bool complete) {
+    NOTREACHED();
+  }
+
  private:
   void RunCallback(base::PlatformFileError error_code,
                    const base::PlatformFileInfo& file_info) {
     if (!module_.get() || !callback_.func)
       return;
 
     if (error_code == base::PLATFORM_FILE_OK) {
       info_->size = file_info.size;
       info_->creation_time = file_info.creation_time.ToDoubleT();
       info_->last_access_time = file_info.last_accessed.ToDoubleT();
@@ skipping 122 matching lines @@
   &Rename
 };
 
 }  // namespace
 
 const PPB_FileSystem_Dev* FileSystem::GetInterface() {
   return &ppb_filesystem;
 }
 
 }  // namespace pepper