Revert "aw: Disable ipc command buffer by default"

android_webview/browser/aw_browser_main_parts.cc

Index: android_webview/browser/aw_browser_main_parts.cc
diff --git a/android_webview/browser/aw_browser_main_parts.cc b/android_webview/browser/aw_browser_main_parts.cc
index 6fc5154955cd06b30b99d3f37694a2df9b0af133..e2bf9a2d7617cd36956a1fc60041c1b65e0a63b7 100644
--- a/android_webview/browser/aw_browser_main_parts.cc
+++ b/android_webview/browser/aw_browser_main_parts.cc
@@ -89,10 +89,10 @@ void AwBrowserMainParts::PreMainMessageLoopRun() {
       new AwMediaClientAndroid(AwResource::GetConfigKeySystemUuidMapping()));
 
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kUseIpcCommandBuffer)) {
-    content::SynchronousCompositor::SetUseIpcCommandBuffer();
-  } else {
+          switches::kUseInProcCommandBuffer)) {
     gfx::GLSurface::InitializeOneOff();
+  } else {
+    content::SynchronousCompositor::SetUseIpcCommandBuffer();
   }
 
   content::RenderFrameHost::AllowInjectingJavaScriptForAndroidWebView();