[Android WebView] Make InputStreamImpl::Read fill the IOBuffer.

android_webview/native/input_stream_unittest.cc

 // Copyright (c) 2012 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 "android_webview/native/input_stream_impl.h"
 #include "base/android/jni_android.h"
 #include "base/android/scoped_java_ref.h"
 #include "base/memory/scoped_ptr.h"
 #include "jni/InputStreamUnittest_jni.h"
 #include "net/base/io_buffer.h"
@@ skipping 71 matching lines @@
 }
 
 TEST_F(InputStreamTest, ReadStreamCompletely) {
   const int bytes_requested = 42;
   int bytes_read = 0;
   DoReadCountedStreamTest(bytes_requested, bytes_requested, &bytes_read);
   EXPECT_EQ(bytes_requested, bytes_read);
 }
 
 TEST_F(InputStreamTest, TryReadMoreThanBuffer) {
-  const int bytes_requested = 3 * InputStreamImpl::kBufferSize;
+  const int buffer_size = 3 * InputStreamImpl::kBufferSize;
   int bytes_read = 0;
-  DoReadCountedStreamTest(bytes_requested, bytes_requested, &bytes_read);
-  EXPECT_EQ(InputStreamImpl::kBufferSize, bytes_read);
+  DoReadCountedStreamTest(buffer_size, buffer_size * 2, &bytes_read);
+  EXPECT_EQ(buffer_size, bytes_read);
 }
 
 TEST_F(InputStreamTest, CheckContentsReadCorrectly) {
   const int bytes_requested = 256;
   int bytes_read = 0;
   scoped_refptr<IOBuffer> buffer =
       DoReadCountedStreamTest(bytes_requested, bytes_requested, &bytes_read);
   EXPECT_EQ(bytes_requested, bytes_read);
   for (int i = 0; i < bytes_requested; ++i) {
     EXPECT_EQ(i, (unsigned char)buffer->data()[i]);
   }
 }
+
+TEST_F(InputStreamTest, ReadLargeStreamPartial) {
+  const int bytes_requested = 3 * InputStreamImpl::kBufferSize;
+  int bytes_read = 0;
+  DoReadCountedStreamTest(bytes_requested + 32, bytes_requested, &bytes_read);
+  EXPECT_EQ(bytes_requested, bytes_read);
+}
+
+TEST_F(InputStreamTest, ReadLargeStreamCompletely) {
+  const int bytes_requested = 3 * InputStreamImpl::kBufferSize;
+  int bytes_read = 0;
+  DoReadCountedStreamTest(bytes_requested, bytes_requested, &bytes_read);
+  EXPECT_EQ(bytes_requested, bytes_read);
+}