chromecast: Add override for IsDataResourceGzipped() in CastContentClient

This fixes a regression where settings can't be opened on Estelle.

Bug: b/132257001
Test: open settings on estelle

Change-Id: I4699de0b07b20e52632fcc72f564cd0e0638de66
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1600327
Auto-Submit: Michael Spang <spang@chromium.org>
Reviewed-by: Demetrios Papadopoulos <dpapad@chromium.org>
Commit-Queue: Michael Spang <spang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#657791}

chromecast/common/cast_content_client.cc

@@ -132,6 +132,10 @@ base::RefCountedMemory* CastContentClient::GetDataResourceBytes(
       resource_id);
 }
 
+bool CastContentClient::IsDataResourceGzipped(int resource_id) const {
+  return ui::ResourceBundle::GetSharedInstance().IsGzipped(resource_id);
+}
+
 gfx::Image& CastContentClient::GetNativeImageNamed(int resource_id) const {
   return ui::ResourceBundle::GetSharedInstance().GetNativeImageNamed(
       resource_id);

chromecast/common/cast_content_client.h

@@ -27,6 +27,7 @@ class CastContentClient : public content::ContentClient {
       ui::ScaleFactor scale_factor) const override;
   base::RefCountedMemory* GetDataResourceBytes(
       int resource_id) const override;
+  bool IsDataResourceGzipped(int resource_id) const override;
   gfx::Image& GetNativeImageNamed(int resource_id) const override;
 #if defined(OS_ANDROID)
   ::media::MediaDrmBridgeClient* GetMediaDrmBridgeClient() override;