blimp: Add settings to allow the client to download the whole page.

blimp/engine/feature/engine_render_widget_feature.h

Index: blimp/engine/feature/engine_render_widget_feature.h
diff --git a/blimp/engine/feature/engine_render_widget_feature.h b/blimp/engine/feature/engine_render_widget_feature.h
index 155ad3e538a95ed1fbe1e10edaa8d232c94f833c..a7f48297492bed836b5e26b0f64cc6546f159255 100644
--- a/blimp/engine/feature/engine_render_widget_feature.h
+++ b/blimp/engine/feature/engine_render_widget_feature.h
@@ -14,6 +14,7 @@
 #include "base/containers/small_map.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
+#include "blimp/engine/feature/engine_settings_feature.h"
 #include "blimp/net/blimp_message_processor.h"
 #include "blimp/net/input_message_converter.h"
 
@@ -33,7 +34,8 @@ namespace blimp {
 // notified of incoming messages. This class automatically handles dropping
 // stale BlimpMessage::RENDER_WIDGET messages from the client after a
 // RenderWidgetMessage::INITIALIZE message is sent.
-class EngineRenderWidgetFeature : public BlimpMessageProcessor {
+class EngineRenderWidgetFeature : public BlimpMessageProcessor,
+                                  public EngineSettingsFeature::Observer {
  public:
   // A delegate to be notified of specific RenderWidget related incoming events.
   class RenderWidgetMessageDelegate {
@@ -51,7 +53,7 @@ class EngineRenderWidgetFeature : public BlimpMessageProcessor {
         const std::vector<uint8_t>& message) = 0;
   };
 
-  EngineRenderWidgetFeature();
+  explicit EngineRenderWidgetFeature(EngineSettingsFeature* settings);
   ~EngineRenderWidgetFeature() override;
 
   void set_render_widget_message_sender(
@@ -98,6 +100,9 @@ class EngineRenderWidgetFeature : public BlimpMessageProcessor {
   void ProcessMessage(scoped_ptr<BlimpMessage> message,
                       const net::CompletionCallback& callback) override;
 
+  // EngineSettingsFeature::Observer implementation.
+  void OnWebPreferencesChanged() override;
+
  private:
   typedef base::SmallMap<std::map<int, RenderWidgetMessageDelegate*> >
   DelegateMap;
@@ -151,6 +156,8 @@ class EngineRenderWidgetFeature : public BlimpMessageProcessor {
 
   InputMessageConverter input_message_converter_;
 
+  EngineSettingsFeature* settings_feature_;
+
   // Outgoing message processors for RENDER_WIDGET, COMPOSITOR and INPUT types.
   scoped_ptr<BlimpMessageProcessor> render_widget_message_sender_;
   scoped_ptr<BlimpMessageProcessor> compositor_message_sender_;