CC: Account for memory assigned to raster tasks.

Rasters are already throttled by a transfer buffer limit.
This applies the same limit in TileManager which should have
several advantages:
- We keep more content cached (raster tasks take from cache)
- The memory spike due to priority changes is minimized.
- Time spent in ScheduleTasks is much reduced.

BUG=303397

Review URL: https://codereview.chromium.org/26654008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233731 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 5 insertions, 0 deletions

diff --git a/cc/test/test_web_graphics_context_3d.h b/cc/test/test_web_graphics_context_3d.h
index a559f06..5e876ef 100644
--- a/cc/test/test_web_graphics_context_3d.h
+++ b/cc/test/test_web_graphics_context_3d.h
@@ -226,6 +226,9 @@ class TestWebGraphicsContext3D : public FakeWebGraphicsContext3D {
 
   size_t GetTransferBufferMemoryUsedBytes() const;
   void SetMaxTransferBufferUsageBytes(size_t max_transfer_buffer_usage_bytes);
+  size_t GetPeakTransferBufferMemoryUsedBytes() const {
+    return peak_transfer_buffer_memory_used_bytes_;
+  }
 
   void set_test_support(TestContextSupport* test_support) {
     test_support_ = test_support;
@@ -341,6 +344,8 @@ class TestWebGraphicsContext3D : public FakeWebGraphicsContext3D {
   unsigned bound_buffer_;
   TextureTargets texture_targets_;
 
+  size_t peak_transfer_buffer_memory_used_bytes_;
+
   scoped_refptr<Namespace> namespace_;
   static Namespace* shared_namespace_;