[fsp] Use auto generated methods for generating dictionaries.

chrome/browser/chromeos/file_system_provider/operations/write_file_unittest.cc

Index: chrome/browser/chromeos/file_system_provider/operations/write_file_unittest.cc
diff --git a/chrome/browser/chromeos/file_system_provider/operations/write_file_unittest.cc b/chrome/browser/chromeos/file_system_provider/operations/write_file_unittest.cc
index 0c1d984e7df61f400711b9b180dd18bdf89493d1..cbc9959d12087fa49550e234959d75b149b8fb06 100644
--- a/chrome/browser/chromeos/file_system_provider/operations/write_file_unittest.cc
+++ b/chrome/browser/chromeos/file_system_provider/operations/write_file_unittest.cc
@@ -54,6 +54,8 @@ class FileSystemProviderOperationsWriteFileTest : public testing::Test {
 };
 
 TEST_F(FileSystemProviderOperationsWriteFileTest, Execute) {
+  using extensions::api::file_system_provider::WriteFileRequestedOptions;
+
   util::LoggingDispatchEventImpl dispatcher(true /* dispatch_reply */);
   util::StatusCallbackLog callback_log;
 
@@ -78,32 +80,16 @@ TEST_F(FileSystemProviderOperationsWriteFileTest, Execute) {
   base::ListValue* event_args = event->event_args.get();
   ASSERT_EQ(1u, event_args->GetSize());
 
-  base::DictionaryValue* options = NULL;
-  ASSERT_TRUE(event_args->GetDictionary(0, &options));
-
-  std::string event_file_system_id;
-  EXPECT_TRUE(options->GetString("fileSystemId", &event_file_system_id));
-  EXPECT_EQ(kFileSystemId, event_file_system_id);
-
-  int event_request_id = -1;
-  EXPECT_TRUE(options->GetInteger("requestId", &event_request_id));
-  EXPECT_EQ(kRequestId, event_request_id);
-
-  int event_file_handle = -1;
-  EXPECT_TRUE(options->GetInteger("openRequestId", &event_file_handle));
-  EXPECT_EQ(kFileHandle, event_file_handle);
-
-  double event_offset = -1;
-  EXPECT_TRUE(options->GetDouble("offset", &event_offset));
-  EXPECT_EQ(kOffset, static_cast<double>(event_offset));
+  const base::DictionaryValue* options_as_value = NULL;
+  ASSERT_TRUE(event_args->GetDictionary(0, &options_as_value));
 
-  base::BinaryValue* event_data = NULL;
-  ASSERT_TRUE(options->GetBinary("data", &event_data));
-  EXPECT_EQ(static_cast<size_t>(io_buffer_->size()), event_data->GetSize());
-  char* const event_data_buffer = event_data->GetBuffer();
-  ASSERT_TRUE(event_data_buffer);
-  EXPECT_EQ(std::string(kWriteData),
-            std::string(event_data_buffer, event_data->GetSize()));
+  WriteFileRequestedOptions options;
+  ASSERT_TRUE(WriteFileRequestedOptions::Populate(*options_as_value, &options));
+  EXPECT_EQ(kFileSystemId, options.file_system_id);
+  EXPECT_EQ(kRequestId, options.request_id);
+  EXPECT_EQ(kFileHandle, options.open_request_id);
+  EXPECT_EQ(kOffset, static_cast<double>(options.offset));
+  EXPECT_EQ(std::string(kWriteData), options.data);
 }
 
 TEST_F(FileSystemProviderOperationsWriteFileTest, Execute_NoListener) {