Back out r22981, it may have caused Windows test failures.

chrome/browser/renderer_host/browser_render_process_host.cc

Index: chrome/browser/renderer_host/browser_render_process_host.cc
===================================================================
--- chrome/browser/renderer_host/browser_render_process_host.cc	(revision 22989)
+++ chrome/browser/renderer_host/browser_render_process_host.cc	(working copy)
@@ -47,7 +47,6 @@
 #include "chrome/browser/visitedlink_master.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/child_process_info.h"
-#include "chrome/common/child_process_host.h"
 #include "chrome/common/chrome_descriptors.h"
 #include "chrome/common/logging_chrome.h"
 #include "chrome/common/notification_service.h"
@@ -202,6 +201,16 @@
   VisitedLinkCommon::Fingerprints pending_;
 };
 
+
+// Used for a View_ID where the renderer has not been attached yet
+const int32 kInvalidViewID = -1;
+
+// Get the path to the renderer executable, which is the same as the
+// current executable.
+bool GetRendererPath(std::wstring* cmd_line) {
+  return PathService::Get(base::FILE_EXE, cmd_line);
+}
+
 BrowserRenderProcessHost::BrowserRenderProcessHost(Profile* profile)
     : RenderProcessHost(profile),
       visible_widgets_(0),
@@ -298,12 +307,15 @@
 
   // Build command line for renderer, we have to quote the executable name to
   // deal with spaces.
-  std::wstring renderer_path = ChildProcessHost::GetChildPath();
+  std::wstring renderer_path =
+      browser_command_line.GetSwitchValue(switches::kBrowserSubprocessPath);
   if (renderer_path.empty()) {
-    // Need to reset the channel we created above or others might think the
-    // connection is live.
-    channel_.reset();
-    return false;
+    if (!GetRendererPath(&renderer_path)) {
+      // Need to reset the channel we created above or others might think the
+      // connection is live.
+      channel_.reset();
+      return false;
+    }
   }
   CommandLine cmd_line(renderer_path);
   if (logging::DialogsAreSuppressed())