Make ChildProcessHost be used through an interface in content/public, instead of by inheritence.

content/browser/renderer_host/resource_dispatcher_host_unittest.cc

 // Copyright (c) 2011 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/resource_dispatcher_host.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/file_path.h"
 #include "base/message_loop.h"
 #include "base/process_util.h"
 #include "content/browser/browser_thread_impl.h"
 #include "content/browser/child_process_security_policy.h"
 #include "content/browser/download/download_id.h"
 #include "content/browser/download/download_id_factory.h"
 #include "content/browser/mock_resource_context.h"
 #include "content/browser/renderer_host/dummy_resource_handler.h"
 #include "content/browser/renderer_host/global_request_id.h"
 #include "content/browser/renderer_host/resource_dispatcher_host.h"
 #include "content/browser/renderer_host/resource_dispatcher_host_request_info.h"
 #include "content/browser/renderer_host/resource_handler.h"
 #include "content/browser/renderer_host/resource_message_filter.h"
-#include "content/common/child_process_host.h"
+#include "content/common/child_process_host_impl.h"
 #include "content/common/resource_messages.h"
 #include "content/common/view_messages.h"
 #include "content/public/common/resource_response.h"
 #include "net/base/net_errors.h"
 #include "net/base/upload_data.h"
 #include "net/http/http_util.h"
 #include "net/url_request/url_request.h"
 #include "net/url_request/url_request_job.h"
 #include "net/url_request/url_request_test_job.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "webkit/appcache/appcache_interfaces.h"
 
 using content::BrowserThread;
 using content::BrowserThreadImpl;
+using content::ChildProcessHostImpl;
 
 // TODO(eroman): Write unit tests for SafeBrowsing that exercise
 //               SafeBrowsingResourceHandler.
 
 namespace {
 
 // Returns the resource response header structure for this request.
 void GetResponseHead(const std::vector<IPC::Message>& messages,
                      content::ResourceResponseHead* response_head) {
   ASSERT_GE(messages.size(), 2U);
@@ skipping 106 matching lines @@
 };
 
 // This class forwards the incoming messages to the ResourceDispatcherHostTest.
 // This is used to emulate different sub-processes, since this filter will
 // have a different ID than the original. For the test, we want all the incoming
 // messages to go to the same place, which is why this forwards.
 class ForwardingFilter : public ResourceMessageFilter {
  public:
   explicit ForwardingFilter(IPC::Message::Sender* dest)
     : ResourceMessageFilter(
-        ChildProcessHost::GenerateChildProcessUniqueId(),
+        ChildProcessHostImpl::GenerateChildProcessUniqueId(),
         content::PROCESS_TYPE_RENDERER,
         content::MockResourceContext::GetInstance(),
         new MockURLRequestContextSelector(
             content::MockResourceContext::GetInstance()->request_context()),
         NULL),
       dest_(dest) {
     OnChannelConnected(base::GetCurrentProcId());
   }
 
   // ResourceMessageFilter override
@@ skipping 1050 matching lines @@
   EXPECT_EQ(1, host_.pending_requests());
 
   // Cancelling by other methods shouldn't work either.
   host_.CancelRequestsForProcess(render_view_id);
   EXPECT_EQ(1, host_.pending_requests());
 
   // Cancelling by context should work.
   host_.CancelRequestsForContext(&filter_->resource_context());
   EXPECT_EQ(0, host_.pending_requests());
 }