Remove the command buffer method glGetImageivCHROMIUM.

third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.cpp

Index: third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.cpp b/third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.cpp
index e85fa09048e3ad909aa8b839736e0120b403451f..89fb58fe9d6a34206159b85bcc41bddd35160804 100644
--- a/third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.cpp
+++ b/third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.cpp
@@ -221,7 +221,6 @@ bool Canvas2DLayerBridge::prepareIOSurfaceMailboxFromImage(SkImage* image, WebEx
     gl->Flush();
     gl->GenSyncTokenCHROMIUM(fenceSync, info.m_mailbox.syncToken);
     info.m_mailbox.validSyncToken = true;
-    info.m_mailbox.gpuMemoryBufferId = imageInfo.m_gpuMemoryBufferId;
 
     info.m_imageInfo = imageInfo;
     *outMailbox = info.m_mailbox;
@@ -261,11 +260,7 @@ Canvas2DLayerBridge::ImageInfo Canvas2DLayerBridge::createIOSurfaceBackedTexture
     gl->TexParameteri(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
     gl->BindTexImage2DCHROMIUM(target, imageId);
 
-    GLint gpuMemoryBufferId = -1;
-    gl->GetImageivCHROMIUM(imageId, GC3D_GPU_MEMORY_BUFFER_ID, &gpuMemoryBufferId);
-    DCHECK_NE(-1, gpuMemoryBufferId);
-
-    return Canvas2DLayerBridge::ImageInfo(imageId, textureId, gpuMemoryBufferId);
+    return Canvas2DLayerBridge::ImageInfo(imageId, textureId);
 }
 
 void Canvas2DLayerBridge::deleteCHROMIUMImage(ImageInfo info)
@@ -1002,14 +997,10 @@ void Canvas2DLayerBridge::willOverwriteCanvas()
 }
 
 #if USE_IOSURFACE_FOR_2D_CANVAS
-Canvas2DLayerBridge::ImageInfo::ImageInfo(GLuint imageId, GLuint textureId, GLint gpuMemoryBufferId)
-    : m_imageId(imageId)
-    , m_textureId(textureId)
-    , m_gpuMemoryBufferId(gpuMemoryBufferId)
+Canvas2DLayerBridge::ImageInfo::ImageInfo(GLuint imageId, GLuint textureId) : m_imageId(imageId), m_textureId(textureId)
 {
     DCHECK(imageId);
     DCHECK(textureId);
-    DCHECK_NE(-1, gpuMemoryBufferId);
 }
 
 bool Canvas2DLayerBridge::ImageInfo::empty()