[devtools] Support different encodings for Page.CaptureScreenshot.

content/browser/devtools/protocol/page_handler_image_utils.cc

+// Copyright 2017 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 "content/browser/devtools/protocol/page_handler.h"
+
+
+namespace content {
+namespace protocol {
+
+scoped_refptr<base::RefCountedMemory> EncodeScreenshotImageAsJpeg(

[pfeldman, 2017/01/07 01:13:27]

Is this dead code?

[Eric Seckler, 2017/01/09 14:52:04]

Yeah, I thought I had deleted these files.. Gone now. Thanks!

+    const SkBitmap& bitmap,
+    int quality) {
+  scoped_refptr<base::RefCountedBytes> data(new base::RefCountedBytes());
+  SkAutoLockPixels lock_image(bitmap);
+  bool encoded = gfx::JPEGCodec::Encode(
+      reinterpret_cast<unsigned char*>(bitmap.getPixels()),
+      gfx::JPEGCodec::FORMAT_SkBitmap, bitmap.width(), bitmap.height(),
+      base::checked_cast<int>(bitmap.rowBytes()), quality, &data->data());
+
+  if (!encoded)
+    return nullptr;
+  else
+    return data;
+}
+
+
+}  // namespace protocol
+}  // namespace content