[aw] Reuse WebContents PowerSaveBlocker in fullscreen.

android_webview/lib/main/aw_main_delegate.cc

Index: android_webview/lib/main/aw_main_delegate.cc
diff --git a/android_webview/lib/main/aw_main_delegate.cc b/android_webview/lib/main/aw_main_delegate.cc
index deb5fee4b48fab24ee74e2727626a0778350cf31..100d1ca5e7c2258536ef01eab1e825b11b59733c 100644
--- a/android_webview/lib/main/aw_main_delegate.cc
+++ b/android_webview/lib/main/aw_main_delegate.cc
@@ -67,12 +67,6 @@ bool AwMainDelegate::BasicStartupComplete(int* exit_code) {
   // File system API not supported (requires some new API; internal bug 6930981)
   cl->AppendSwitch(switches::kDisableFileSystem);
 
-  // For fullscreen video we create a new container view to host the
-  // WebContents, ie. the FullscreenView. As a result we cannot reuse the
-  // embedded video blocker attached to the old container view, so we create a
-  // new blocker instead attached to the ContentVideoView.
-  cl->AppendSwitch(switches::kEnableContentVideoViewPowerSaveBlocker);
-
 #if defined(VIDEO_HOLE)
   // Support EME/L1 with hole-punching.
   cl->AppendSwitch(switches::kMediaDrmEnableNonCompositing);