Move find-in-page code from RenderView to RenderFrame.

content/renderer/pepper/pepper_plugin_instance_impl.cc

Index: content/renderer/pepper/pepper_plugin_instance_impl.cc
diff --git a/content/renderer/pepper/pepper_plugin_instance_impl.cc b/content/renderer/pepper/pepper_plugin_instance_impl.cc
index 6d5d72d9a1dc37151e8d0cbd54236b0723a46e2a..e1e3f988e026b7b57dbe8bd4ab76ec264cfa1d0d 100644
--- a/content/renderer/pepper/pepper_plugin_instance_impl.cc
+++ b/content/renderer/pepper/pepper_plugin_instance_impl.cc
@@ -667,9 +667,8 @@ v8::Local<v8::Context> PepperPluginInstanceImpl::GetMainWorldContext() {
 void PepperPluginInstanceImpl::Delete() {
   is_deleted_ = true;
 
-  if (render_frame_ && render_frame_->render_view() &&
-      render_frame_->render_view()->plugin_find_handler() == this) {
-    render_frame_->render_view()->set_plugin_find_handler(NULL);
+  if (render_frame_ && render_frame_->plugin_find_handler() == this) {
+    render_frame_->set_plugin_find_handler(nullptr);
   }
 
   // Keep a reference on the stack. See NOTE above.
@@ -2531,7 +2530,7 @@ void PepperPluginInstanceImpl::SetPluginToHandleFindRequests(
       render_frame_->GetRenderView()->GetMainRenderFrame() == render_frame_;
   if (!is_main_frame)
     return;
-  render_frame_->render_view()->set_plugin_find_handler(this);
+  render_frame_->set_plugin_find_handler(this);
 }
 
 void PepperPluginInstanceImpl::NumberOfFindResultsChanged(