blimp: Set up the CompositorDependencies for blimp in Chrome.

content/public/test/test_renderer_host.h

Index: content/public/test/test_renderer_host.h
diff --git a/content/public/test/test_renderer_host.h b/content/public/test/test_renderer_host.h
index 76feee497d36405352f6322d5996c3f6b68f9bab..92b2503cc75f75a370868ef8d9af677588aebb7f 100644
--- a/content/public/test/test_renderer_host.h
+++ b/content/public/test/test_renderer_host.h
@@ -36,6 +36,7 @@ namespace content {
 
 class BrowserContext;
 class ContentBrowserSanityChecker;
+class MockGpuChannelEstablishFactory;
 class MockRenderProcessHost;
 class MockRenderProcessHostFactory;
 class NavigationController;
@@ -276,6 +277,9 @@ class RenderViewHostTestHarness : public testing::Test {
 #if defined(USE_AURA)
   std::unique_ptr<aura::test::AuraTestHelper> aura_test_helper_;
 #endif
+#if defined(OS_ANDROID)
+  std::unique_ptr<MockGpuChannelEstablishFactory> gpu_channel_factory_;
+#endif
   RenderViewHostTestEnabler rvh_test_enabler_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewHostTestHarness);