Implement --v8-cache-options (instead of --enable-preparsed-js-caching)

content/browser/renderer_host/render_view_host_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/renderer_host/render_view_host_impl.h"
 
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 455 matching lines @@
   prefs.main_frame_resizes_are_orientation_changes =
       command_line.HasSwitch(switches::kMainFrameResizesAreOrientationChanges);
 
   prefs.deferred_image_decoding_enabled =
       command_line.HasSwitch(switches::kEnableDeferredImageDecoding) ||
       content::IsImplSidePaintingEnabled();
 
   prefs.spatial_navigation_enabled = command_line.HasSwitch(
       switches::kEnableSpatialNavigation);
 
+  if (command_line.HasSwitch(switches::kV8CacheOptions)) {
+    const std::string v8_cache_options =
+        command_line.GetSwitchValueASCII(switches::kV8CacheOptions);
+    if (v8_cache_options == "parse") {
+      prefs.v8_cache_options = V8_CACHE_OPTIONS_PARSE;
+    } else if (v8_cache_options == "code") {
+      prefs.v8_cache_options = V8_CACHE_OPTIONS_CODE;
+    } else {
+      prefs.v8_cache_options = V8_CACHE_OPTIONS_OFF;
+    }
+  }
+
   GetContentClient()->browser()->OverrideWebkitPrefs(this, url, &prefs);
   return prefs;
 }
 
 void RenderViewHostImpl::Navigate(const FrameMsg_Navigate_Params& params) {
   TRACE_EVENT0("renderer_host", "RenderViewHostImpl::Navigate");
   delegate_->GetFrameTree()->GetMainFrame()->Navigate(params);
 }
 
 void RenderViewHostImpl::NavigateToURL(const GURL& url) {
@@ skipping 1094 matching lines @@
   FrameTree* frame_tree = delegate_->GetFrameTree();
 
   frame_tree->ResetForMainFrameSwap();
 }
 
 void RenderViewHostImpl::SelectWordAroundCaret() {
   Send(new ViewMsg_SelectWordAroundCaret(GetRoutingID()));
 }
 
 }  // namespace content