WebUI: Move the core files of WebUI from chrome/browser/webui to content/browser/webui.

BUG=59946
TEST=trybots

Review URL: http://codereview.chromium.org/6575054

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@76020 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 64 insertions, 0 deletions

diff --git a/content/browser/webui/web_ui_util.cc b/content/browser/webui/web_ui_util.cc
new file mode 100644
index 0000000..e76aaef
--- /dev/null
+++ b/content/browser/webui/web_ui_util.cc
@@ -0,0 +1,64 @@
+// Copyright (c) 2011 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/webui/web_ui_util.h"
+
+#include <vector>
+
+#include "base/base64.h"
+#include "base/logging.h"
+#include "base/values.h"
+#include "ui/base/resource/resource_bundle.h"
+#include "ui/gfx/codec/png_codec.h"
+
+namespace web_ui_util {
+
+std::string GetJsonResponseFromFirstArgumentInList(const ListValue* args) {
+  return GetJsonResponseFromArgumentList(args, 0);
+}
+
+std::string GetJsonResponseFromArgumentList(const ListValue* args,
+                                            size_t list_index) {
+  std::string result;
+  if (args->GetSize() <= list_index) {
+    NOTREACHED();
+    return result;
+  }
+
+  Value* value = NULL;
+  if (args->Get(list_index, &value))
+    value->GetAsString(&result);
+  else
+    NOTREACHED();
+
+  return result;
+}
+
+std::string GetImageDataUrl(const SkBitmap& bitmap) {
+  std::vector<unsigned char> output;
+  gfx::PNGCodec::EncodeBGRASkBitmap(bitmap, false, &output);
+  std::string str_url;
+  std::copy(output.begin(), output.end(),
+            std::back_inserter(str_url));
+  base::Base64Encode(str_url, &str_url);
+  str_url.insert(0, "data:image/png;base64,");
+  return str_url;
+}
+
+std::string GetImageDataUrlFromResource(int res) {
+  // Load resource icon and covert to base64 encoded data url
+  RefCountedStaticMemory* icon_data =
+      ResourceBundle::GetSharedInstance().LoadDataResourceBytes(res);
+  if (!icon_data)
+    return std::string();
+  scoped_refptr<RefCountedMemory> raw_icon(icon_data);
+  std::string str_url;
+  std::copy(raw_icon->front(), raw_icon->front() + raw_icon->size(),
+            std::back_inserter(str_url));
+  base::Base64Encode(str_url, &str_url);
+  str_url.insert(0, "data:image/png;base64,");
+  return str_url;
+}
+
+}  // namespace web_ui_util