More out-of-lining of test code, along with a bunch of GMOCK objects.

chrome/test/test_url_request_context_getter.h

Index: chrome/test/test_url_request_context_getter.h
diff --git a/chrome/test/test_url_request_context_getter.h b/chrome/test/test_url_request_context_getter.h
index 43ff9741635ff24508b61b8ceaa89e6c319f3910..ee309e0b5f0038fd42e6c845ef1e55748ce81299 100644
--- a/chrome/test/test_url_request_context_getter.h
+++ b/chrome/test/test_url_request_context_getter.h
@@ -7,9 +7,11 @@
 #pragma once
 
 #include "base/ref_counted.h"
-#include "chrome/browser/browser_thread.h"
 #include "chrome/common/net/url_request_context_getter.h"
-#include "net/url_request/url_request_test_util.h"
+
+namespace base {
+class MessageLoopProxy;
+}
 
 // Used to return a dummy context (normally the context is on the IO thread).
 // The one here can be run on the main test thread. Note that this can lead to
@@ -18,14 +20,12 @@
 // special trait that deletes it on the IO thread.
 class TestURLRequestContextGetter : public URLRequestContextGetter {
  public:
-  virtual net::URLRequestContext* GetURLRequestContext() {
-    if (!context_)
-      context_ = new TestURLRequestContext();
-    return context_.get();
-  }
-  virtual scoped_refptr<base::MessageLoopProxy> GetIOMessageLoopProxy() const {
-    return BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO);
-  }
+  TestURLRequestContextGetter();
+  virtual ~TestURLRequestContextGetter();
+
+  // URLRequestContextGetter:
+  virtual net::URLRequestContext* GetURLRequestContext();
+  virtual scoped_refptr<base::MessageLoopProxy> GetIOMessageLoopProxy() const;
 
  private:
   scoped_refptr<net::URLRequestContext> context_;