Gzip compress chrome://accessibility resources

content/browser/webui/web_ui_data_source_impl.cc

Index: content/browser/webui/web_ui_data_source_impl.cc
diff --git a/content/browser/webui/web_ui_data_source_impl.cc b/content/browser/webui/web_ui_data_source_impl.cc
index f62ade45501f5228f9d59ce9ffd1a18ec3106e64..a5364fbf2b2810e36be883d8a3bb4c7fc156ca31 100644
--- a/content/browser/webui/web_ui_data_source_impl.cc
+++ b/content/browser/webui/web_ui_data_source_impl.cc
@@ -10,6 +10,7 @@
 #include <string>
 
 #include "base/bind.h"
+#include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/strings/string_util.h"
@@ -74,9 +75,8 @@ class WebUIDataSourceImpl::InternalDataSource : public URLDataSource {
     return parent_->deny_xframe_options_;
   }
   bool IsGzipped(const std::string& path) const override {
-    if (!parent_->json_path_.empty() && path == parent_->json_path_)
-      return false;
-    return parent_->use_gzip_for_all_paths_;
+    return parent_->use_gzip_for_all_paths_ &&
+        parent_->excluded_paths_.find(path) == parent_->excluded_paths_.end();
   }
 
  private:
@@ -147,7 +147,11 @@ void WebUIDataSourceImpl::AddInteger(const std::string& name, int32_t value) {
 }
 
 void WebUIDataSourceImpl::SetJsonPath(const std::string& path) {
+  DCHECK(json_path_.empty());
+  DCHECK(!path.empty());
+
   json_path_ = path;
+  ExcludePathFromGzip(json_path_);
 }
 
 void WebUIDataSourceImpl::AddResourcePath(const std::string &path,
@@ -168,6 +172,10 @@ void WebUIDataSourceImpl::DisableReplaceExistingSource() {
   replace_existing_source_ = false;
 }
 
+void WebUIDataSourceImpl::ExcludePathFromGzip(const std::string& path) {
+  excluded_paths_.insert(path);
+}
+
 void WebUIDataSourceImpl::DisableContentSecurityPolicy() {
   add_csp_ = false;
 }