Move all the layout tests that ran under browser_tests to run under content_browsertests.

content/test/browser_test_base.h

Index: content/test/browser_test_base.h
===================================================================
--- content/test/browser_test_base.h	(revision 148205)
+++ content/test/browser_test_base.h	(working copy)
@@ -7,6 +7,7 @@
 
 #include "base/compiler_specific.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "net/test/test_server.h"
 
 class CommandLine;
 
@@ -56,8 +57,23 @@
   // (RunTestOnMainThread), quits the browsers and returns.
   virtual void RunTestOnMainThreadLoop() = 0;
 
+  // Returns the testing server. Guaranteed to be non-NULL.
+  const net::TestServer* test_server() const { return test_server_.get(); }
+  net::TestServer* test_server() { return test_server_.get(); }
+
+  // This function is meant only for classes that directly derive from this
+  // class to construct the test server in their constructor. They might need to
+  // call this after setting up the paths. Actual test cases should never call
+  // this.
+  // |test_server_base| is the path, relative to src, to give to the test HTTP
+  // server.
+  void CreateTestServer(const char* test_server_base);
+
  private:
   void ProxyRunTestOnMainThreadLoop();
+
+  // Testing server, started on demand.
+  scoped_ptr<net::TestServer> test_server_;
 };
 
 #endif  // CONTENT_TEST_BROWSER_TEST_BASE_H_