cc: Maximize pending updates.

cc/resource_update_controller_unittest.cc

Index: cc/resource_update_controller_unittest.cc
diff --git a/cc/resource_update_controller_unittest.cc b/cc/resource_update_controller_unittest.cc
index ac0b4cc769d497d937f75ee9bc36141b1ba99080..7d6862914945f9b5a286b066194cd14dadb96153 100644
--- a/cc/resource_update_controller_unittest.cc
+++ b/cc/resource_update_controller_unittest.cc
@@ -12,6 +12,7 @@
 #include "cc/test/scheduler_test_common.h"
 #include "cc/test/tiled_layer_test_common.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/khronos/GLES2/gl2ext.h"
 
 using namespace cc;
 using namespace WebKit;
@@ -52,6 +53,8 @@ public:
         return WebString("");
     }
 
+    virtual void getQueryObjectuivEXT(WebGLId, WGC3Denum, WGC3Duint*);
+
 private:
     ResourceUpdateControllerTest* m_test;
     bool m_supportShallowFlush;
@@ -71,6 +74,7 @@ public:
         , m_numDanglingUploads(0)
         , m_numTotalUploads(0)
         , m_numTotalFlushes(0)
+        , m_queryResultsAvailable(0)
     {
     }
 
@@ -105,6 +109,15 @@ public:
         m_numTotalUploads++;
     }
 
+    bool isQueryResultAvailable()
+    {
+        if (!m_queryResultsAvailable)
+            return false;
+
+        m_queryResultsAvailable--;
+        return true;
+    }
+
 protected:
     virtual void SetUp()
     {
@@ -177,6 +190,11 @@ protected:
         updateController->finalize();
     }
 
+    void makeQueryResultAvailable()
+    {
+        m_queryResultsAvailable++;
+    }
+
 protected:
     // Classes required to interact and test the ResourceUpdateController
     scoped_ptr<GraphicsContext> m_context;
@@ -185,6 +203,7 @@ protected:
     scoped_ptr<PrioritizedTexture> m_textures[4];
     scoped_ptr<PrioritizedTextureManager> m_textureManager;
     SkBitmap m_bitmap;
+    int m_queryResultsAvailable;
 
     // Properties / expectations of this test
     int m_fullUploadCountExpected;
@@ -222,6 +241,14 @@ void WebGraphicsContext3DForUploadTest::texSubImage2D(WGC3Denum target,
     m_test->onUpload();
 }
 
+void WebGraphicsContext3DForUploadTest::getQueryObjectuivEXT(
+    WebGLId,
+    WGC3Denum pname,
+    WGC3Duint* params) {
+    if (pname == GL_QUERY_RESULT_AVAILABLE_EXT)
+        *params = m_test->isQueryResultAvailable();
+}
+
 // ZERO UPLOADS TESTS
 TEST_F(ResourceUpdateControllerTest, ZeroUploads)
 {
@@ -381,10 +408,12 @@ TEST_F(ResourceUpdateControllerTest, UpdateMoreTextures)
     // Only enough time for 1 update.
     controller->performMoreUpdates(
         controller->now() + base::TimeDelta::FromMilliseconds(120));
-    runPendingTask(&thread, controller.get());
     EXPECT_FALSE(thread.hasPendingTask());
     EXPECT_EQ(1, m_numTotalUploads);
 
+    // Complete one upload.
+    makeQueryResultAvailable();
+
     controller->setUpdateMoreTexturesTime(
         base::TimeDelta::FromMilliseconds(100));
     controller->setUpdateMoreTexturesSize(1);
@@ -392,7 +421,6 @@ TEST_F(ResourceUpdateControllerTest, UpdateMoreTextures)
     controller->performMoreUpdates(
         controller->now() + base::TimeDelta::FromMilliseconds(220));
     runPendingTask(&thread, controller.get());
-    runPendingTask(&thread, controller.get());
     EXPECT_FALSE(thread.hasPendingTask());
     EXPECT_TRUE(client.readyToFinalizeCalled());
     EXPECT_EQ(3, m_numTotalUploads);
@@ -420,7 +448,6 @@ TEST_F(ResourceUpdateControllerTest, NoMoreUpdates)
     controller->performMoreUpdates(
         controller->now() + base::TimeDelta::FromMilliseconds(310));
     runPendingTask(&thread, controller.get());
-    runPendingTask(&thread, controller.get());
     EXPECT_FALSE(thread.hasPendingTask());
     EXPECT_TRUE(client.readyToFinalizeCalled());
     EXPECT_EQ(2, m_numTotalUploads);