Expose parseDataURL to Platform

This patch exposes data url parsing to WebKit. This is a Chromium-side
change for https://codereview.chromium.org/16433002.

BUG=224317
R=jamesr@chromium.org

Review URL: https://codereview.chromium.org/16096016

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@204907 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 19 insertions, 0 deletions

diff --git a/webkit/glue/webkitplatformsupport_impl.cc b/webkit/glue/webkitplatformsupport_impl.cc
index c4d9e52..850041b 100644
--- a/webkit/glue/webkitplatformsupport_impl.cc
+++ b/webkit/glue/webkitplatformsupport_impl.cc
@@ -28,6 +28,8 @@
 #include "grit/webkit_chromium_resources.h"
 #include "grit/webkit_resources.h"
 #include "grit/webkit_strings.h"
+#include "net/base/data_url.h"
+#include "net/base/mime_util.h"
 #include "net/base/net_errors.h"
 #include "third_party/WebKit/public/platform/WebCookie.h"
 #include "third_party/WebKit/public/platform/WebData.h"
@@ -403,6 +405,20 @@ WebString WebKitPlatformSupportImpl::userAgent(const WebURL& url) {
   return WebString::fromUTF8(webkit_glue::GetUserAgent(url));
 }
 
+WebData WebKitPlatformSupportImpl::parseDataURL(
+    const WebURL& url,
+    WebString& mimetype_out,
+    WebString& charset_out) {
+  std::string mime_type, char_set, data;
+  if (net::DataURL::Parse(url, &mime_type, &char_set, &data)
+      && net::IsSupportedMimeType(mime_type)) {
+    mimetype_out = WebString::fromUTF8(mime_type);
+    charset_out = WebString::fromUTF8(char_set);
+    return data;
+  }
+  return WebData();
+}
+
 WebURLError WebKitPlatformSupportImpl::cancelledError(
     const WebURL& unreachableURL) const {
   return WebURLLoaderImpl::CreateError(unreachableURL, net::ERR_ABORTED);
diff --git a/webkit/glue/webkitplatformsupport_impl.h b/webkit/glue/webkitplatformsupport_impl.h
index 5e4acb2..53d31bf 100644
--- a/webkit/glue/webkitplatformsupport_impl.h
+++ b/webkit/glue/webkitplatformsupport_impl.h
@@ -85,6 +85,9 @@ class WEBKIT_GLUE_EXPORT WebKitPlatformSupportImpl :
   virtual WebKit::WebURLLoader* createURLLoader();
   virtual WebKit::WebSocketStreamHandle* createSocketStreamHandle();
   virtual WebKit::WebString userAgent(const WebKit::WebURL& url);
+  WebKit::WebData parseDataURL(
+      const WebKit::WebURL& url, WebKit::WebString& mimetype,
+      WebKit::WebString& charset);
   virtual WebKit::WebURLError cancelledError(const WebKit::WebURL& url) const;
   virtual void getPluginList(bool refresh, WebKit::WebPluginListBuilder*);
   virtual void decrementStatsCounter(const char* name);