cc: Add asynchronous setPixel interface.

cc/resource_provider.h

Index: cc/resource_provider.h
diff --git a/cc/resource_provider.h b/cc/resource_provider.h
index e75cda6e56807310ae874131492fed7a03a04519..18e8d1bd5e7a5e269796aca6c3ef48ce00b5f300 100644
--- a/cc/resource_provider.h
+++ b/cc/resource_provider.h
@@ -197,6 +197,14 @@ public:
         DISALLOW_COPY_AND_ASSIGN(ScopedWriteLockSoftware);
     };
 
+    // Async setPixels API.
+    void acquirePixelBuffer(ResourceId id);
+    void releasePixelBuffer(ResourceId id);
+    uint8_t* mapPixelBuffer(ResourceId id);
+    void unmapPixelBuffer(ResourceId id);
+    void scheduleSetPixels(ResourceId id);

[nduca, 2012/11/17 17:10:30]

beginSetPixels?

[reveman, 2012/11/18 18:15:59]

Done.

+    bool didSetPixelsComplete(ResourceId id);
+
 private:
     struct Resource {
         Resource();
@@ -204,8 +212,11 @@ private:
         Resource(uint8_t* pixels, int pool, const gfx::Size& size, GLenum format);
 
         unsigned glId;
+        unsigned glPixelBufferId;

[nduca, 2012/11/17 17:10:30]

would comments on these vars help indicate that they're used together?

[reveman, 2012/11/18 18:15:59]

Done.

+        unsigned glUploadQueryId;
         Mailbox mailbox;
         uint8_t* pixels;
+        uint8_t* pixelBuffer;
         int pool;
         int lockForReadCount;
         bool lockedForWrite;