Remove impl-side-painting from about:flags

content/renderer/render_thread_impl_browsertest.cc

 // Copyright 2013 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 "base/callback.h"
 #include "base/command_line.h"
 #include "base/memory/discardable_memory.h"
 #include "base/memory/scoped_vector.h"
 #include "base/thread_task_runner_handle.h"
 #include "content/common/resource_messages.h"
@@ skipping 120 matching lines @@
     content_browser_client_.reset(new ContentBrowserClient());
     content_renderer_client_.reset(new ContentRendererClient());
     SetContentClient(content_client_.get());
     SetBrowserClientForTesting(content_browser_client_.get());
     SetRendererClientForTesting(content_renderer_client_.get());
 
     test_helper_.reset(new RenderThreadImplBrowserIPCTestHelper());
 
     mock_process_.reset(new MockRenderProcess);
     test_task_counter_ = make_scoped_refptr(new TestTaskCounter());
+
+    // RenderThreadImpl expects the browser to pass these flags.
+    base::CommandLine* cmd = base::CommandLine::ForCurrentProcess();
+    base::CommandLine::StringVector old_argv = cmd->argv();
+
+    cmd->AppendSwitchASCII(switches::kNumRasterThreads, "1");
     thread_ = new RenderThreadImplForTest(test_helper_->GetChannelId(),
                                           test_task_counter_);
+    cmd->InitFromArgv(old_argv);
+
     thread_->EnsureWebKitInitialized();
 
     test_msg_filter_ = make_scoped_refptr(
         new QuitOnTestMsgFilter(test_helper_->GetMessageLoop()));
     thread_->AddFilter(test_msg_filter_.get());
   }
 
   scoped_refptr<TestTaskCounter> test_task_counter_;
   scoped_ptr<ContentClient> content_client_;
   scoped_ptr<ContentBrowserClient> content_browser_client_;
@@ skipping 70 matching lines @@
   test_helper_->Sender()->Send(new WebSocketMsg_NotifyFailure(1, ""));
   test_helper_->Sender()->Send(new TestMsg_QuitRunLoop());
 
   test_helper_->GetMessageLoop()->Run();
 
   EXPECT_EQ(0, test_task_counter_->NumTasksPosted());
 }
 
 }  // namespace
 }  // namespace content