[NOT FOR COMMIT] Hacks to get hardware canvas

cc/resources/resource_provider.cc

Index: cc/resources/resource_provider.cc
diff --git a/cc/resources/resource_provider.cc b/cc/resources/resource_provider.cc
index 3973fb8868c24a9a8d86b4eeea72e5f525dcec60..b6b2f6e8eb5f540932034b59c6350a7586d4252a 100644
--- a/cc/resources/resource_provider.cc
+++ b/cc/resources/resource_provider.cc
@@ -524,35 +524,45 @@ void ResourceProvider::DeleteResourceInternal(ResourceMap::iterator it,
 
   if (resource->image_id) {
     GLES2Interface* gl = ContextGL();
-    DCHECK(gl);
-    GLC(gl, gl->DestroyImageCHROMIUM(resource->image_id));
+    if (gl) {
+      DCHECK(gl);
+      GLC(gl, gl->DestroyImageCHROMIUM(resource->image_id));
+    }
   }
 
   if (resource->gl_id && !resource->external) {
     GLES2Interface* gl = ContextGL();
+    if (gl) {
     DCHECK(gl);
     GLC(gl, gl->DeleteTextures(1, &resource->gl_id));
+    }
   }
   if (resource->gl_upload_query_id) {
     GLES2Interface* gl = ContextGL();
+    if (gl) {
     DCHECK(gl);
     GLC(gl, gl->DeleteQueriesEXT(1, &resource->gl_upload_query_id));
+    }
   }
   if (resource->gl_pixel_buffer_id) {
     GLES2Interface* gl = ContextGL();
+    if (gl) {
     DCHECK(gl);
     GLC(gl, gl->DeleteBuffers(1, &resource->gl_pixel_buffer_id));
+    }
   }
   if (resource->mailbox.IsValid() && resource->external) {
     GLuint sync_point = resource->mailbox.sync_point();
     if (resource->mailbox.IsTexture()) {
       lost_resource |= lost_output_surface_;
       GLES2Interface* gl = ContextGL();
-      DCHECK(gl);
-      if (resource->gl_id)
-        GLC(gl, gl->DeleteTextures(1, &resource->gl_id));
-      if (!lost_resource && resource->gl_id)
-        sync_point = gl->InsertSyncPointCHROMIUM();
+      if (gl) {
+        DCHECK(gl);
+        if (resource->gl_id)
+          GLC(gl, gl->DeleteTextures(1, &resource->gl_id));
+        if (!lost_resource && resource->gl_id)
+          sync_point = gl->InsertSyncPointCHROMIUM();
+      }
     } else {
       DCHECK(resource->mailbox.IsSharedMemory());
       base::SharedMemory* shared_memory = resource->mailbox.shared_memory();