ozone: Introduce ClientPixmap and ClientPixmapFactory for non-GPU processes.

content/renderer/renderer_main.cc

Index: content/renderer/renderer_main.cc
diff --git a/content/renderer/renderer_main.cc b/content/renderer/renderer_main.cc
index 98bf93bf793c78f089bc45d84d8a6e342c2fabda..0975ef328a5866269c3c940ace10810aebddbd19 100644
--- a/content/renderer/renderer_main.cc
+++ b/content/renderer/renderer_main.cc
@@ -52,6 +52,10 @@
 #include "third_party/libjingle/overrides/init_webrtc.h"
 #endif
 
+#if defined(USE_OZONE)
+#include "ui/ozone/public/client_native_pixmap_factory.h"
+#endif
+
 namespace content {
 namespace {
 // This function provides some ways to test crash and assertion handling
@@ -65,6 +69,11 @@ static void HandleRendererErrorTestParameters(
     ChildProcess::WaitForDebugger("Renderer");
 }
 
+#if defined(USE_OZONE)
+base::LazyInstance<scoped_ptr<ui::ClientNativePixmapFactory>> g_pixmap_factory =
+    LAZY_INSTANCE_INITIALIZER;
+#endif
+
 }  // namespace
 
 // mainline routine for running as the Renderer process
@@ -100,6 +109,11 @@ int RendererMain(const MainFunctionParams& parameters) {
   SkGraphics::SetFontCacheLimit(font_cache_limit);
 #endif
 
+#if defined(USE_OZONE)
+  g_pixmap_factory.Get() = ui::ClientNativePixmapFactory::Create();
+  ui::ClientNativePixmapFactory::SetInstance(g_pixmap_factory.Get().get());

[dshwang, 2015/08/05 12:11:50]

you are right. It's not yet completely switched to "renderer" in
ContentMainRunnerImpl::Initialize(), so kZygoteProcess is needed in the
function.
So I move ClientNativePixmapFactory::SetInstance() for renderer to here.

+#endif
+
   // This function allows pausing execution using the --renderer-startup-dialog
   // flag allowing us to attach a debugger.
   // Do not move this function down since that would mean we can't easily debug