Remove static thread pointers from CC

cc/software_renderer.h

Index: cc/software_renderer.h
diff --git a/cc/software_renderer.h b/cc/software_renderer.h
index a3a35d8f90f08cad304f203d1919f48446e559aa..0d12f4ab0cdc4a9e1d6e1702a4281a5f8d67929d 100644
--- a/cc/software_renderer.h
+++ b/cc/software_renderer.h
@@ -21,7 +21,7 @@ class RenderPassDrawQuad;
 
 class SoftwareRenderer : public DirectRenderer {
 public:
-    static scoped_ptr<SoftwareRenderer> create(RendererClient*, ResourceProvider*, WebKit::WebCompositorSoftwareOutputDevice*);
+    static scoped_ptr<SoftwareRenderer> create(RendererClient*, ResourceProvider*, WebKit::WebCompositorSoftwareOutputDevice*, bool hasImplThread);
     virtual ~SoftwareRenderer();
 
     virtual const RendererCapabilities& capabilities() const OVERRIDE;
@@ -49,7 +49,7 @@ protected:
     virtual bool flippedFramebuffer() const OVERRIDE;
 
 private:
-    SoftwareRenderer(RendererClient*, ResourceProvider*, WebKit::WebCompositorSoftwareOutputDevice*);
+    SoftwareRenderer(RendererClient*, ResourceProvider*, WebKit::WebCompositorSoftwareOutputDevice*, bool hasImplThread);
 
     bool isSoftwareResource(ResourceProvider::ResourceId) const;
 
@@ -61,6 +61,7 @@ private:
     void drawUnsupportedQuad(const DrawingFrame&, const DrawQuad*);
 
     RendererCapabilities m_capabilities;
+    bool m_hasImplThread;
     bool m_visible;
 
     WebKit::WebCompositorSoftwareOutputDevice* m_outputDevice;