Revert of Properly handle defers loading in WebURLLoaderImpl for data uris

content/child/web_url_loader_impl.cc

Index: content/child/web_url_loader_impl.cc
diff --git a/content/child/web_url_loader_impl.cc b/content/child/web_url_loader_impl.cc
index 752620600900e55914bc21ed8095192827abe9bc..bd6fe10b6bc29e409ab96515e44c96ec55e60d40 100644
--- a/content/child/web_url_loader_impl.cc
+++ b/content/child/web_url_loader_impl.cc
@@ -8,7 +8,6 @@
 
 #include <algorithm>
 #include <deque>
-#include <string>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ -355,8 +354,6 @@
   // mechanism.
   std::deque<char> body_stream_buffer_;
   bool got_all_stream_body_data_;
-  enum DeferState {NOT_DEFERRING, SHOULD_DEFER, DEFERRED_DATA};
-  DeferState defers_loading_;
 };
 
 WebURLLoaderImpl::Context::Context(
@@ -368,8 +365,7 @@
       resource_dispatcher_(resource_dispatcher),
       task_runner_(task_runner),
       referrer_policy_(blink::WebReferrerPolicyDefault),
-      got_all_stream_body_data_(false),
-      defers_loading_(NOT_DEFERRING)  {
+      got_all_stream_body_data_(false) {
 }
 
 void WebURLLoaderImpl::Context::Cancel() {
@@ -394,17 +390,6 @@
 void WebURLLoaderImpl::Context::SetDefersLoading(bool value) {
   if (bridge_)
     bridge_->SetDefersLoading(value);
-  if (value) {
-    DCHECK_EQ(NOT_DEFERRING, defers_loading_);
-    defers_loading_ = SHOULD_DEFER;
-  } else {
-    DCHECK_NE(NOT_DEFERRING, defers_loading_);
-    if (defers_loading_ == DEFERRED_DATA) {
-      task_runner_->PostTask(FROM_HERE,
-                             base::Bind(&Context::HandleDataURL, this));
-    }
-    defers_loading_ = NOT_DEFERRING;
-  }
 }
 
 void WebURLLoaderImpl::Context::DidChangePriority(
@@ -851,12 +836,6 @@
 }
 
 void WebURLLoaderImpl::Context::HandleDataURL() {
-  DCHECK_NE(defers_loading_, DEFERRED_DATA);
-  if (defers_loading_ == SHOULD_DEFER) {
-      defers_loading_ = DEFERRED_DATA;
-      return;
-  }
-
   ResourceResponseInfo info;
   std::string data;