Keep event page alive when there's some Pepper plugin on it.

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index eb9971320db4aaff0a97e71a2efcc757be981ee0..5a5d18b3bb11a2ccc42f1d70af1a2ccf29fc779a 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -204,6 +204,8 @@
 #include "content/renderer/npapi/webplugin_delegate_proxy.h"
 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
 #include "content/renderer/pepper/pepper_plugin_registry.h"
+#include "content/renderer/pepper/plugin_module.h"

[bartfab (slow), 2015/05/18 09:57:41]

Nit: Where are you using these new includes?

[emaxx, 2015/05/18 15:06:30]

Done.

+#include "content/renderer/pepper/renderer_ppapi_host_impl.h"
 #endif
 
 #if defined(ENABLE_WEBRTC)
@@ -1179,6 +1181,7 @@ blink::WebView* RenderViewImpl::webview() const {
 void RenderViewImpl::PepperInstanceCreated(
     PepperPluginInstanceImpl* instance) {
   active_pepper_instances_.insert(instance);
+  Send(new ViewHostMsg_PepperInstanceCreated(GetRoutingID()));

[nasko, 2015/05/11 16:24:09]

This can be sent through the instance RenderFrame.

[emaxx, 2015/05/18 15:06:30]

I'm not sure what did you mean. Now I've changed the code here to send the
message through GetMainRenderFrame() - is that what you wanted?

[nasko, 2015/05/19 14:11:45]

This seems slightly incorrect. The PepperPluginInstanceImpl is associated with a
RenderFrame instance, which is accessible through render_frame(). See
https://code.google.com/p/chromium/codesearch#chromium/src/content/renderer/p....
This should be the frame used to send the message, not the main frame.

[emaxx, 2015/05/19 17:33:40]

Done.

 }
 
 void RenderViewImpl::PepperInstanceDeleted(
@@ -1189,6 +1192,7 @@ void RenderViewImpl::PepperInstanceDeleted(
     pepper_last_mouse_event_target_ = NULL;
   if (focused_pepper_plugin_ == instance)
     PepperFocusChanged(instance, false);
+  Send(new ViewHostMsg_PepperInstanceDeleted(GetRoutingID()));

[nasko, 2015/05/11 16:24:09]

Same as above.

[emaxx, 2015/05/18 15:06:29]

Done.

 }
 
 void RenderViewImpl::PepperFocusChanged(PepperPluginInstanceImpl* instance,