Fix MultibufferDataSource::GetSize

media/blink/multibuffer_data_source_unittest.cc

Index: media/blink/multibuffer_data_source_unittest.cc
diff --git a/media/blink/multibuffer_data_source_unittest.cc b/media/blink/multibuffer_data_source_unittest.cc
index deb759d4e5817d1d217ec7bbbd2e786c00c42234..c9be9cb0c0bf79e533c6105008d5baf5614d203b 100644
--- a/media/blink/multibuffer_data_source_unittest.cc
+++ b/media/blink/multibuffer_data_source_unittest.cc
@@ -9,6 +9,7 @@
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
+#include "base/strings/string_number_conversions.h"
 #include "media/base/media_log.h"
 #include "media/base/mock_filters.h"
 #include "media/base/test_helpers.h"
@@ -1425,4 +1426,26 @@ TEST_F(MultibufferDataSourceTest, LengthKnownAtEOF) {
   Stop();
 }
 
+TEST_F(MultibufferDataSourceTest, FileSizeLessThanBlockSize) {
+  Initialize(kHttpUrl, true);
+  GURL gurl(kHttpUrl);
+  blink::WebURLResponse response(gurl);
+  response.setHTTPStatusCode(200);
+  response.setHTTPHeaderField(
+      WebString::fromUTF8("Content-Length"),
+      WebString::fromUTF8(base::Int64ToString(kDataSize / 2)));
+  response.setExpectedContentLength(kDataSize / 2);
+  Respond(response);
+  EXPECT_CALL(host_, AddBufferedByteRange(0, kDataSize / 2));
+  EXPECT_CALL(host_, SetTotalBytes(kDataSize / 2));
+  EXPECT_CALL(host_, AddBufferedByteRange(0, kDataSize * 2));
+  ReceiveData(kDataSize / 2);
+  FinishLoading();
+
+  int64_t len = 0;
+  EXPECT_TRUE(data_source_->GetSize(&len));
+  EXPECT_EQ(kDataSize / 2, len);
+  Stop();
+}
+
 }  // namespace media