Rework FlushSync to return early if commands have been processed since the last update

gpu/demos/framework/Plugin_Info.plist

Index: gpu/demos/framework/Plugin_Info.plist
diff --git a/gpu/demos/framework/Plugin_Info.plist b/gpu/demos/framework/Plugin_Info.plist
deleted file mode 100644
index 4a4e455d9beb1822430c02e5d778a793a10aaa9d..0000000000000000000000000000000000000000
--- a/gpu/demos/framework/Plugin_Info.plist
+++ /dev/null
@@ -1,46 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>CFBundleDevelopmentRegion</key>
-	<string>English</string>
-	<key>CFBundleExecutable</key>
-	<string>${EXECUTABLE_NAME}</string>
-	<key>CFBundleGetInfoString</key>
-	<string>Copyright 2010 Google, Inc.</string>
-	<key>CFBundleIdentifier</key>
-	<string>com.google.peppergpudemoplugin</string>
-	<key>CFBundleInfoDictionaryVersion</key>
-	<string>6.0</string>
-	<key>CFBundleName</key>
-	<string>${PRODUCT_NAME}</string>
-	<key>CFBundlePackageType</key>
-	<string>BRPL</string>
-	<key>CFBundleShortVersionString</key>
-	<string>1.0</string>
-	<key>CFBundleSignature</key>
-	<string>????</string>
-	<key>CFBundleVersion</key>
-	<string>1.0</string>
-	<key>CFPlugInDynamicRegisterFunction</key>
-	<string></string>
-	<key>CFPlugInDynamicRegistration</key>
-	<string>NO</string>
-	<key>WebPluginDescription</key>
-	<string>Simple Pepper plug-in that demonstrates 3D rendering.</string>
-	<key>WebPluginMIMETypes</key>
-	<dict>
-		<key>pepper-application/x-gpu-demo</key>
-		<dict>
-			<key>WebPluginExtensions</key>
-			<array>
-				<string>peppergpudemo</string>
-			</array>
-			<key>WebPluginTypeDescription</key>
-			<string>Pepper GPU Demo</string>
-		</dict>
-	</dict>
-	<key>WebPluginName</key>
-	<string>Pepper GPU Demo</string>
-</dict>
-</plist>