Revert of content: Cleanup GpuMemoryBuffers when child process is removed.

content/browser/renderer_host/render_view_host_unittest.cc

Index: content/browser/renderer_host/render_view_host_unittest.cc
diff --git a/content/browser/renderer_host/render_view_host_unittest.cc b/content/browser/renderer_host/render_view_host_unittest.cc
index f617af55e0bce270e0d732b1061bb8776e59b4c4..638442e5f60a68e0719821e2b54bb59e346f5178 100644
--- a/content/browser/renderer_host/render_view_host_unittest.cc
+++ b/content/browser/renderer_host/render_view_host_unittest.cc
@@ -6,7 +6,6 @@
 #include "base/strings/utf_string_conversions.h"
 #include "content/browser/child_process_security_policy_impl.h"
 #include "content/browser/frame_host/render_frame_host_impl.h"
-#include "content/browser/gpu/browser_gpu_memory_buffer_manager.h"
 #include "content/browser/renderer_host/render_message_filter.h"
 #include "content/browser/renderer_host/render_view_host_delegate_view.h"
 #include "content/browser/renderer_host/render_widget_helper.h"
@@ -48,11 +47,9 @@
   void SetUp() override {
     RenderViewHostImplTestHarness::SetUp();
     old_browser_client_ = SetBrowserClientForTesting(&test_browser_client_);
-    gpu_memory_buffer_manager_.reset(new BrowserGpuMemoryBufferManager(0));
   }
 
   void TearDown() override {
-    gpu_memory_buffer_manager_.reset();
     SetBrowserClientForTesting(old_browser_client_);
     RenderViewHostImplTestHarness::TearDown();
   }
@@ -60,7 +57,6 @@
  private:
   RenderViewHostTestBrowserClient test_browser_client_;
   ContentBrowserClient* old_browser_client_;
-  scoped_ptr<BrowserGpuMemoryBufferManager> gpu_memory_buffer_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewHostTest);
 };