Navigation transitions: Parse out transition-entering-stylesheet link headers.

content/browser/android/content_view_core_impl.cc

 // Copyright 2012 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/android/content_view_core_impl.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
 #include "base/android/scoped_java_ref.h"
@@ skipping 1592 matching lines @@
   if (!focused_frame)
     return;
   if (GetRenderWidgetHostViewAndroid()) {
     GetRenderWidgetHostViewAndroid()->SetTextSurroundingSelectionCallback(
         callback);
     focused_frame->Send(new FrameMsg_TextSurroundingSelectionRequest(
         focused_frame->GetRoutingID(), max_length));
   }
 }
 
-void ContentViewCoreImpl::DidDeferAfterResponseStarted() {
+void ContentViewCoreImpl::DidDeferAfterResponseStarted(
+    const TransitionLayerData& transition_layer_data) {
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jobject> obj(java_ref_.get(env));
   if (obj.is_null())
     return;
   Java_ContentViewCore_didDeferAfterResponseStarted(env, obj.obj());
+
+  std::vector<GURL>::const_iterator iter =
+      transition_layer_data.transition_stylesheets.begin();
+  for (; iter != transition_layer_data.transition_stylesheets.end(); ++iter) {

[shatch, 2014/07/22 20:06:29]

Since there's 2 sets of stylesheets in the feature, a generic "stylesheets" name
isn't very descriptive. The "entering" stylesheets are the ones parsed from the
response headers, might be more clear if instead of "transition_stylesheets" you
renamed these to "entering_stylesheets". Same with the function
addStylesheetToTransition.

lg2m with those changes.

+    ScopedJavaLocalRef<jstring> jstring_url(ConvertUTF8ToJavaString(
+        env, iter->spec()));
+    Java_ContentViewCore_addStylesheetToTransition(
+        env, obj.obj(), jstring_url.obj());
+  }
 }
 
 bool ContentViewCoreImpl::WillHandleDeferAfterResponseStarted() {
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
   if (obj.is_null())
     return false;
 
   return Java_ContentViewCore_willHandleDeferAfterResponseStarted(env,
                                                                   obj.obj());
@@ skipping 35 matching lines @@
       reinterpret_cast<ui::WindowAndroid*>(window_android),
       retained_objects_set);
   return reinterpret_cast<intptr_t>(view);
 }
 
 bool RegisterContentViewCore(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace content