cc: Add software renderer pixel tests

cc/test/pixel_test.h

Index: cc/test/pixel_test.h
diff --git a/cc/test/pixel_test.h b/cc/test/pixel_test.h
index d65214b3b9bfe8893a178ee9ea8dce799562c0ef..c390c3b9396b4ff6827a8c180985fae6ad5c117e 100644
--- a/cc/test/pixel_test.h
+++ b/cc/test/pixel_test.h
@@ -12,7 +12,9 @@
 #define CC_TEST_PIXEL_TEST_H_
 
 namespace cc {
+class DirectRenderer;
 class GLRenderer;
+class SoftwareRenderer;
 class OutputSurface;
 class ResourceProvider;
 
@@ -21,8 +23,6 @@ class PixelTest : public testing::Test {
   PixelTest();
   virtual ~PixelTest();
 
-  virtual void SetUp() OVERRIDE;
-
   bool RunPixelTest(RenderPassList* pass_list,
                     const base::FilePath& ref_file,
                     const PixelComparator& comparator);
@@ -32,9 +32,12 @@ class PixelTest : public testing::Test {
   scoped_ptr<ResourceProvider> resource_provider_;
   class PixelTestRendererClient;
   scoped_ptr<PixelTestRendererClient> fake_client_;
-  scoped_ptr<GLRenderer> renderer_;
+  scoped_ptr<DirectRenderer> renderer_;
   scoped_ptr<SkBitmap> result_bitmap_;
 
+  void SetUpGLRenderer();
+  void SetUpSoftwareRenderer();
+
  private:
   void ReadbackResult(scoped_ptr<SkBitmap> bitmap);
 
@@ -42,6 +45,30 @@ class PixelTest : public testing::Test {
                             const PixelComparator& comparator);
 };
 
+template<typename RendererType>
+class RendererPixelTest : public PixelTest {
+ public:
+  RendererType* renderer() {
+    return static_cast<RendererType*>(renderer_.get());
+  }
+
+ protected:
+  virtual void SetUp() OVERRIDE;
+};
+
+template<>
+inline void RendererPixelTest<GLRenderer>::SetUp() {
+  SetUpGLRenderer();
+}
+
+template<>
+inline void RendererPixelTest<SoftwareRenderer>::SetUp() {
+  SetUpSoftwareRenderer();
+}
+
+typedef RendererPixelTest<GLRenderer> GLRendererPixelTest;
+typedef RendererPixelTest<SoftwareRenderer> SoftwareRendererPixelTest;
+
 }  // namespace cc
 
 #endif  // CC_TEST_PIXEL_TEST_H_