PPAPI: implement GetSupportedPreviewSizes

content/renderer/pepper/content_renderer_pepper_host_factory.cc

Index: content/renderer/pepper/content_renderer_pepper_host_factory.cc
diff --git a/content/renderer/pepper/content_renderer_pepper_host_factory.cc b/content/renderer/pepper/content_renderer_pepper_host_factory.cc
index 9d7fae63416eac0a78a9103e428f67e4b6c1ca13..598c18abd33c92701d876f076961cf2b206f5b1d 100644
--- a/content/renderer/pepper/content_renderer_pepper_host_factory.cc
+++ b/content/renderer/pepper/content_renderer_pepper_host_factory.cc
@@ -15,6 +15,7 @@
 #include "content/renderer/pepper/pepper_file_ref_renderer_host.h"
 #include "content/renderer/pepper/pepper_file_system_host.h"
 #include "content/renderer/pepper/pepper_graphics_2d_host.h"
+#include "content/renderer/pepper/pepper_image_capture_host.h"
 #include "content/renderer/pepper/pepper_media_stream_video_track_host.h"
 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
 #include "content/renderer/pepper/pepper_url_loader_host.h"
@@ -200,6 +201,17 @@ scoped_ptr<ResourceHost> ContentRendererPepperHostFactory::CreateResourceHost(
     }
   }
 
+  // Private interfaces.
+  if (GetPermissions().HasPermission(ppapi::PERMISSION_PRIVATE)) {
+    switch (message.type()) {
+      case PpapiHostMsg_ImageCapture_Create::ID: {
+        scoped_ptr<PepperImageCaptureHost> host(
+            new PepperImageCaptureHost(host_, instance, resource));
+        return host->Init() ? host.Pass() : nullptr;
+      }
+    }
+  }
+
   return scoped_ptr<ResourceHost>();
 }