[fsp] Add support for providing thumbnails.

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

Index: chrome/browser/chromeos/file_system_provider/operations/get_metadata_unittest.cc
diff --git a/chrome/browser/chromeos/file_system_provider/operations/get_metadata_unittest.cc b/chrome/browser/chromeos/file_system_provider/operations/get_metadata_unittest.cc
index 33f38d626856383f94632b94e46deecaad8b806e..34a3ff7e2414a2eedaf85b6585a919a6918c03dc 100644
--- a/chrome/browser/chromeos/file_system_provider/operations/get_metadata_unittest.cc
+++ b/chrome/browser/chromeos/file_system_provider/operations/get_metadata_unittest.cc
@@ -27,6 +27,7 @@ namespace {
 const char kExtensionId[] = "mbflcebpggnecokmikipoihdbecnjfoj";
 const char kFileSystemId[] = "testing-file-system";
 const char kMimeType[] = "text/plain";
+const char kThumbnail[] = "data:image/png;base64,";
 const int kRequestId = 2;
 const base::FilePath::CharType kDirectoryPath[] = "/directory";
 
@@ -88,11 +89,13 @@ TEST_F(FileSystemProviderOperationsGetMetadataTest, Execute) {
   util::LoggingDispatchEventImpl dispatcher(true /* dispatch_reply */);
   CallbackLogger callback_logger;
 
-  GetMetadata get_metadata(NULL,
-                           file_system_info_,
-                           base::FilePath::FromUTF8Unsafe(kDirectoryPath),
-                           base::Bind(&CallbackLogger::OnGetMetadata,
-                                      base::Unretained(&callback_logger)));
+  GetMetadata get_metadata(
+      NULL,
+      file_system_info_,
+      base::FilePath::FromUTF8Unsafe(kDirectoryPath),
+      ProvidedFileSystemInterface::METADATA_FIELD_THUMBNAIL,
+      base::Bind(&CallbackLogger::OnGetMetadata,
+                 base::Unretained(&callback_logger)));
   get_metadata.SetDispatchEventImplForTesting(
       base::Bind(&util::LoggingDispatchEventImpl::OnDispatchEventImpl,
                  base::Unretained(&dispatcher)));
@@ -121,17 +124,23 @@ TEST_F(FileSystemProviderOperationsGetMetadataTest, Execute) {
   std::string event_entry_path;
   EXPECT_TRUE(options->GetString("entryPath", &event_entry_path));
   EXPECT_EQ(kDirectoryPath, event_entry_path);
+
+  bool event_thumbnail;
+  EXPECT_TRUE(options->GetBoolean("thumbnail", &event_thumbnail));
+  EXPECT_TRUE(event_thumbnail);
 }
 
 TEST_F(FileSystemProviderOperationsGetMetadataTest, Execute_NoListener) {
   util::LoggingDispatchEventImpl dispatcher(false /* dispatch_reply */);
   CallbackLogger callback_logger;
 
-  GetMetadata get_metadata(NULL,
-                           file_system_info_,
-                           base::FilePath::FromUTF8Unsafe(kDirectoryPath),
-                           base::Bind(&CallbackLogger::OnGetMetadata,
-                                      base::Unretained(&callback_logger)));
+  GetMetadata get_metadata(
+      NULL,
+      file_system_info_,
+      base::FilePath::FromUTF8Unsafe(kDirectoryPath),
+      ProvidedFileSystemInterface::METADATA_FIELD_THUMBNAIL,
+      base::Bind(&CallbackLogger::OnGetMetadata,
+                 base::Unretained(&callback_logger)));
   get_metadata.SetDispatchEventImplForTesting(
       base::Bind(&util::LoggingDispatchEventImpl::OnDispatchEventImpl,
                  base::Unretained(&dispatcher)));
@@ -146,11 +155,13 @@ TEST_F(FileSystemProviderOperationsGetMetadataTest, OnSuccess) {
   util::LoggingDispatchEventImpl dispatcher(true /* dispatch_reply */);
   CallbackLogger callback_logger;
 
-  GetMetadata get_metadata(NULL,
-                           file_system_info_,
-                           base::FilePath::FromUTF8Unsafe(kDirectoryPath),
-                           base::Bind(&CallbackLogger::OnGetMetadata,
-                                      base::Unretained(&callback_logger)));
+  GetMetadata get_metadata(
+      NULL,
+      file_system_info_,
+      base::FilePath::FromUTF8Unsafe(kDirectoryPath),
+      ProvidedFileSystemInterface::METADATA_FIELD_THUMBNAIL,
+      base::Bind(&CallbackLogger::OnGetMetadata,
+                 base::Unretained(&callback_logger)));
   get_metadata.SetDispatchEventImplForTesting(
       base::Bind(&util::LoggingDispatchEventImpl::OnDispatchEventImpl,
                  base::Unretained(&dispatcher)));
@@ -171,7 +182,8 @@ TEST_F(FileSystemProviderOperationsGetMetadataTest, OnSuccess) {
       "    \"modificationTime\": {\n"
       "      \"value\": \"Thu Apr 24 00:46:52 UTC 2014\"\n"
       "    },\n"
-      "    \"mimeType\": \"text/plain\"\n"  // kMimeType
+      "    \"mimeType\": \"text/plain\",\n"              // kMimeType
+      "    \"thumbnail\": \"data:image/png;base64,\"\n"  // kThumbnail
       "  },\n"
       "  0\n"  // execution_time
       "]\n";
@@ -205,17 +217,20 @@ TEST_F(FileSystemProviderOperationsGetMetadataTest, OnSuccess) {
       base::Time::FromString("Thu Apr 24 00:46:52 UTC 2014", &expected_time));
   EXPECT_EQ(expected_time, metadata.modification_time);
   EXPECT_EQ(kMimeType, metadata.mime_type);
+  EXPECT_EQ(kThumbnail, metadata.thumbnail);
 }
 
 TEST_F(FileSystemProviderOperationsGetMetadataTest, OnError) {
   util::LoggingDispatchEventImpl dispatcher(true /* dispatch_reply */);
   CallbackLogger callback_logger;
 
-  GetMetadata get_metadata(NULL,
-                           file_system_info_,
-                           base::FilePath::FromUTF8Unsafe(kDirectoryPath),
-                           base::Bind(&CallbackLogger::OnGetMetadata,
-                                      base::Unretained(&callback_logger)));
+  GetMetadata get_metadata(
+      NULL,
+      file_system_info_,
+      base::FilePath::FromUTF8Unsafe(kDirectoryPath),
+      ProvidedFileSystemInterface::METADATA_FIELD_THUMBNAIL,
+      base::Bind(&CallbackLogger::OnGetMetadata,
+                 base::Unretained(&callback_logger)));
   get_metadata.SetDispatchEventImplForTesting(
       base::Bind(&util::LoggingDispatchEventImpl::OnDispatchEventImpl,
                  base::Unretained(&dispatcher)));