Remove static thread pointers from CC

cc/software_renderer.cc

Index: cc/software_renderer.cc
diff --git a/cc/software_renderer.cc b/cc/software_renderer.cc
index 05b7a11225255a96894dfcdccc2da475c8f3d05f..8714b39ec1eaadf036765f1651559511a563db7d 100644
--- a/cc/software_renderer.cc
+++ b/cc/software_renderer.cc
@@ -65,13 +65,14 @@ bool isScaleAndTranslate(const SkMatrix& matrix)
 
 } // anonymous namespace
 
-scoped_ptr<SoftwareRenderer> SoftwareRenderer::create(RendererClient* client, ResourceProvider* resourceProvider, WebCompositorSoftwareOutputDevice* outputDevice)
+scoped_ptr<SoftwareRenderer> SoftwareRenderer::create(RendererClient* client, ResourceProvider* resourceProvider, WebCompositorSoftwareOutputDevice* outputDevice, bool hasImplThread)
 {
-    return make_scoped_ptr(new SoftwareRenderer(client, resourceProvider, outputDevice));
+    return make_scoped_ptr(new SoftwareRenderer(client, resourceProvider, outputDevice, hasImplThread));
 }
 
-SoftwareRenderer::SoftwareRenderer(RendererClient* client, ResourceProvider* resourceProvider, WebCompositorSoftwareOutputDevice* outputDevice)
+SoftwareRenderer::SoftwareRenderer(RendererClient* client, ResourceProvider* resourceProvider, WebCompositorSoftwareOutputDevice* outputDevice, bool hasImplThread)
     : DirectRenderer(client, resourceProvider)
+    , m_hasImplThread(hasImplThread)
     , m_visible(true)
     , m_outputDevice(outputDevice)
     , m_skCurrentCanvas(0)
@@ -333,7 +334,7 @@ void SoftwareRenderer::drawUnsupportedQuad(const DrawingFrame& frame, const Draw
 
 bool SoftwareRenderer::swapBuffers()
 {
-    if (Proxy::hasImplThread())
+    if (m_hasImplThread)
         m_client->onSwapBuffersComplete();
     return true;
 }