Plugin Power Saver: Make PepperPluginInstanceThrottler interface public.

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 356f7af0751fd310b6ae8ef434f386299cbe1b46..802dca19845e111d4b549035dea22a40d110cb64 100644
--- a/chrome/renderer/chrome_content_renderer_client.cc
+++ b/chrome/renderer/chrome_content_renderer_client.cc
@@ -70,6 +70,7 @@
 #include "components/visitedlink/renderer/visitedlink_slave.h"
 #include "components/web_cache/renderer/web_cache_render_process_observer.h"
 #include "content/public/common/content_constants.h"
+#include "content/public/renderer/plugin_instance_throttler.h"
 #include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_thread.h"
 #include "content/public/renderer/render_view.h"
@@ -152,6 +153,7 @@ using autofill::PasswordAutofillAgent;
 using autofill::PasswordGenerationAgent;
 using base::ASCIIToUTF16;
 using base::UserMetricsAction;
+using content::PluginInstanceThrottler;
 using content::RenderFrame;
 using content::RenderThread;
 using content::WebPluginInfo;
@@ -794,9 +796,9 @@ WebPlugin* ChromeContentRendererClient::CreatePlugin(
         }
 #endif  // !defined(DISABLE_NACL) && defined(ENABLE_EXTENSIONS)
 
-        RenderFrame::PluginPowerSaverMode power_saver_mode =
-            RenderFrame::POWER_SAVER_MODE_ESSENTIAL;
 #if defined(ENABLE_PLUGINS)
+        PluginInstanceThrottler::PluginPowerSaverMode power_saver_mode =
+            PluginInstanceThrottler::POWER_SAVER_MODE_ESSENTIAL;
         bool show_poster = false;
         GURL poster_url;
         bool cross_origin_main_content = false;
@@ -807,14 +809,16 @@ WebPlugin* ChromeContentRendererClient::CreatePlugin(
         if (render_frame->ShouldThrottleContent(params, frame->document().url(),
                                                 &poster_url,
                                                 &cross_origin_main_content)) {
-          if (status_value ==
-              ChromeViewHostMsg_GetPluginInfo_Status::kPlayImportantContent) {
+          // TODO(tommycli): Apply throttler behavior to all plugins.
+          if (plugin.name == base::ASCIIToUTF16(content::kFlashPluginName) &&
+              status_value == ChromeViewHostMsg_GetPluginInfo_Status::
+                                  kPlayImportantContent) {
             power_saver_mode =
-                RenderFrame::POWER_SAVER_MODE_PERIPHERAL_THROTTLED;
+                PluginInstanceThrottler::POWER_SAVER_MODE_PERIPHERAL_THROTTLED;
             show_poster = poster_url.is_valid();
           } else {
-            power_saver_mode =
-                RenderFrame::POWER_SAVER_MODE_PERIPHERAL_UNTHROTTLED;
+            power_saver_mode = PluginInstanceThrottler::
+                POWER_SAVER_MODE_PERIPHERAL_UNTHROTTLED;
           }
         }
 
@@ -839,10 +843,18 @@ WebPlugin* ChromeContentRendererClient::CreatePlugin(
           GURL content_origin = GURL(params.url).GetOrigin();
           render_frame->WhitelistContentOrigin(content_origin);
         }
-#endif  // defined(ENABLE_PLUGINS)
 
+        scoped_ptr<content::PluginInstanceThrottler> throttler;
+        if (power_saver_mode !=
+            content::PluginInstanceThrottler::POWER_SAVER_MODE_ESSENTIAL) {
+          throttler = content::PluginInstanceThrottler::Create(
+              render_frame, url, power_saver_mode);
+        }
         return render_frame->CreatePlugin(frame, plugin, params,
-                                          power_saver_mode);
+                                          throttler.Pass());
+#else  // !defined(ENABLE_PLUGINS)
+        return render_frame->CreatePlugin(frame, plugin, params, nullptr);
+#endif
       }
       case ChromeViewHostMsg_GetPluginInfo_Status::kNPAPINotSupported: {
         RenderThread::Get()->RecordAction(