Plugin Power Saver: Improve Poster behavior for essential plugins.

chrome/renderer/chrome_content_renderer_client.cc

Index: chrome/renderer/chrome_content_renderer_client.cc
diff --git a/chrome/renderer/chrome_content_renderer_client.cc b/chrome/renderer/chrome_content_renderer_client.cc
index 0db8e4144ce617af19dc943a8f2b9e1a24876785..7d26fa37e9a18b0a7775c90296e520f86d40d36d 100644
--- a/chrome/renderer/chrome_content_renderer_client.cc
+++ b/chrome/renderer/chrome_content_renderer_client.cc
@@ -828,9 +828,19 @@ WebPlugin* ChromeContentRendererClient::CreatePlugin(
 
         PlaceholderPosterInfo poster_info;
         if (power_saver_enabled) {
-          poster_info.poster_attribute =
-              GetPluginInstancePosterAttribute(params);
-          poster_info.base_url = frame->document().url();
+          bool essential_origin = !render_frame->ShouldThrottleContent(
+              render_frame->GetWebFrame()->top()->securityOrigin(),
+              url::Origin(params.url), -1, -1, nullptr);

[groby-ooo-7-16, 2015/12/04 22:06:56]

Ugh. Three mystery params. 

[tommycli, 2015/12/07 22:06:18]

Done.

+
+          if (essential_origin) {
+            // Turn off power saver and ignore poster for same-origin and
+            // whitelisted-origin plugin content.
+            power_saver_enabled = false;
+          } else {
+            poster_info.poster_attribute =
+                GetPluginInstancePosterAttribute(params);
+            poster_info.base_url = frame->document().url();
+          }

[groby-ooo-7-16, 2015/12/04 22:06:56]

In general, that's a whole chunk of code just dealing with PPS, and this
function is already atrociously long - factor out?

[tommycli, 2015/12/07 22:06:18]

Done.

         }
 
         if (is_flash)